Below is a list of phrases, many of which are transition phrases. Go through this list sequentially. For each phrase, decide if it's suitable for casual/everyday/snappy American English conversations.

I want the result in tabulated form:
Column1: serial number
Column2: original phrase
Column3: verdict on the phrase which can be one of the three: 1. Okay - Already casual, 2. Okay but there's a better casual alternative, 3. Formal/awkward/stilted
Column4: alternative to original phrase. Suggest alternative(s) only if verdict is one of 2 or 3 above in column3.

A lot of times
A neutral take
A fair look
Never before
Not until now
Along the same line
In the same vein
How's this
How about that
Can you believe that
Isn't that something
Using the same reasoning
By the same logic
Until then
Until next time
Till then
Here are my thoughts
Here's a couple of ideas
Here's what I suggest
To my surprise
To my shock
Suppose, for instance
Imagine if
Do you think
What do you think
Do you reckon
Let's pretend
Imagine for a second
To be certain
To make sure
Just to be clear
That in no way means
Doesn't mean
That doesn't imply
At the core of it
The heart of it
The crux is
Above all
Most importantly
What's vital
First and foremost
Especially
The fact that
What's important is
To highlight
To underscore
To emphasize
To underline
Fundamentally
At its core
Basically
Simply put
In short
Totally
Completely
Absolutely
Thoroughly
Entirely
In its entirety
Fully
Not just
Not only
More than
First thing to remember
Remember first
Remember this
Keep in mind
An important detail
A key point
Remarkably
Notably
Another key point
Note that
Worth mentioning
Genuinely
Paying attention to
Keeping an eye on
For sure
Incredibly
It's important
To such an extent that
To the point where
So much that
To such a degree
As a matter of fact
In fact
The truth is
It's crucial
It's vital
It's obvious
Often overlooked
Frequently ignored
Truly
Secondary
Less important
Mainly
It's important to note
The reality is
Uniquely
Distinctly
Must be remembered
Remember
Let alone
Not to mention
Much less
Just as important
As crucial
In particular
To point out
Really
Also important
Extremely
For one thing
Of less importance
Not as crucial
In essence
By all means
Definitely
Less critical
Slightly less important
A bit less important
Less importantly
Without reservation
Very
Strongly
Closely
What matters most
They key point is
Most important
The key takeaway
Look
Take note
Actually
Look here
Take a look
Even more important
The fact of the matter is
Truth is
Even more
Particularly
Something people often miss
Often missed
Equally important
Just as crucial
Of equal importance
Not as important
Bearing in mind
Markedly
Noticeably
Mind you
Important to realize
It matters
Strictly
Exclusively
Only
Solely
Indeed
Point often overlooked
Last but not least
Noteworthy is
With this in mind
Seriously
Needless to say
More to the point
The main point is
What's noteworthy here is
The key point is
To highlight this further
At the crux of it
The main issue is
The overarching theme here is
The central idea is
What's missing is
What's absent is
One can't ignore
To call attention to
To note
Let's not overlook
More revealing is
More telling is
I notice a clear pattern here
I notice a trend here
What stands out here is
To that point
To address the elephant in the room
To address the issue
In no uncertain terms
It's worth mentioning
At the root of it
Not to gloss over
Not to ignore
Not to overlook
When push comes to shove
In a pinch
When it's critical
When it matters most
Let's not lose sight of
At the heart of it
The essence is
To be clear
Just to underline the key point
To emphasize the key point
With a renewed focus
Zeroing in again
Focusing again
To capture the essence
To get to the heart of it
To distill
To boil it down
Make no mistake
Rest assured
Don't get it twisted
I'd like to point out
I'd like to highlight
I want to mention
And don't forget
On this point
Most of all
Even more so
More than that
Best of all
More obvious
The main thing is
What's relevant
What matters
Without exception
The central theme
The central question
The central idea
The core idea
The essence
The key position
The central argument
The key point
Key to this process
Essential for this
At the heart of this idea is
What's clear
It's even more obvious
I want to underline
I want to highlight
It's no coincidence
It's no accident
Not by chance
On purpose
It doesn't matter
What I'd like you to think about
Ponder this
Reflect on this
Really think this through
Let's mull over
We should chew on
Let's weigh this
Let's give this some thought
Let's take a good look
Give it some good think
Weight your options
Wrap your head around this
Chew on this
Mull this over
A point of contention
A sticking point
A hot button
A touchy subject
Something else to mull over
To really drive it home
To hammer this in
To make it crystal clear
Gotta stress that
Can't stress enough
It's crucial to highlight
The main focus
Front and center
The key focus
To hammer this point home
To drive this point further
To double down on this
To hit this home
To underline this
To push this further
To put a finer point on it
To highlight this
I want to make sure we all get
I want to bring up
Gotta point out
I want to flag
The essential question
The million dollar question
The key question is
The burning question is
What we should be asking is
Just as important is
The key event
The big happening
The highlight
It's clearly obvious
It's plain as day
It's right in front of us
The fact remains
The bottom line is
At the end of the day
When it all comes down to it
It's a well-known fact
It's common knowledge
After the fact
After the dust settled
The real kicker is
What's scary is
The bigger worry is
What's more alarming
I was taken aback to find out
It caught me off guard
Because of this
Given that
We can't ignore that
We can't brush off
We can't turn a blind eye to
And also
I think it's reasonable to say
safe to say
And finally
To top it all off
Wrapping up
It's way more likely
There's a better chance
It's a lot more probable
Further
Plus
Deep down
The essence of
A basic principle of
A key principle
Making things more complex
To muddy the waters
Adding a twist
Throwing a wrench in
Complicating things
Try your hand at
Give it a try
Give it a go
Give it a whirl
Take a crack at it
I want to point out
Traditionally
More important
Even bigger
The key thing is
Another biggie
Another important thing
To make this crystal clear
To spell it out
To drive this home
This goes to show
It's particularly important
It's super important
It really matters
What we need to focus on
What really needs our attention
We gotta hone in on
Even though it matters
While it's a biggie
While it's a big deal
It's growing in importance
It's becoming a bigger deal
The key thing to remember
The main takeaway
What you can't forget
Just as big of a deal
The top priority
The number one thing
Hands down the most important
Without a doubt, the biggest deal
The top of the list
It's absolutely essential
It's a must
Even more crucial
Even more of a must
Take, for instance
Like, take this
I tend to
I'm inclined to
Here's the problem
Here's the snag
The catch is
I gotta bring this up
Let me throw this out there
Let's talk more about this
Let's unpack this
To improve matters
To smooth things out
To fix this up
To make things better
Considering that
Mindful of
I can't quite remember
It's slipping my mind
I can't recall
More times than not
Increasingly
More often now
More and more
Most notably
Also note
It's important to recognize that
You gotta realize
Worth flagging
Another thing to bring up
What's worth pointing out
Key things to mention
Take note that
Notable points
Don't brush off
Don't sleep on
Don't overlook
One of the most important aspects
A big piece
But now
But here's the thing
But at this point
You'll see that
What you'll see
What you'll notice
Up to this point
This idea is rooted in
This stems from
The big aim
Th end game
The main objective
To hit this target
To get there
I've noticed
I've picked up on
I've caught that
The most obvious thing is
The clearest thing is
Very rarely
Most often
What's the reason
What's behind this
What's causing this
For the past few years
In recent year
Especially among
Particularly among
Notably in
Focus especially on
Zero in on
Hone in on
Pay close attention to
Over the past (number) months
In recent months
Like before
Same as before
At some point in the past
Sometime back
We've reached a point
We've hit spot
We've gotten to where
We've come to a point
One final point
One last thing
At what point
When exactly
A red flag
Something to keep an eye on
This brings me to my next point
Which brings me to
This leads me to
I take your point
I see what you mean
I get it
The bigger picture is
This point of view
This angle
This take
At present
At the precise moment
Right this second
Just now
At this exact time
The problem is this
The snag is
The hiccup is
For our purposes
For what we're doing
For us
What's up?
One of the main ideas
One big idea
A key idea
A big takeaway
That's the issue
That's the hang-up
That's the snag
That's the trouble
The real issue is
The actual snag is
This is the problem
Here's the catch
Here's the hiccup
To make things clear
Just to clarify
Let me rephrase that
Let me put it another way
What I mean is
Here I'm painting with a broad brush
To answer your question directly
To get right into it
To give you a straight answer
To cut to the chase
To answer your question
The question then becomes
The next thing to ask is
Which raises the question
The right thing to ask
The question we need to ask
The question up for debate
The talking point is
This may call into question
This might raise questions
This could make us wonder
Even more reason
Another reason why
It's a good reason to believe
It backs up the idea
Just a heads up
What's cool
The fun part
What's curious
This could jog your memory
This could ring a bell
This could remind you
Just a friendly reminder
A little nudge
Just a reminder
In all important ways
Having met all criteria
Checking all the boxes
Covering all bases
Once you've had your say
Once you've put it out there
Once you've weighed in
Like I was saying
Don't ever think that
Don't go thinking
Don't assume
Let me say it straight
For the record
As you'll see
Like you can see
As you'll notice
I see it differently
I have a different take
It remains to be seen
Time will tell
We'll see
It's up in the air
What folks might see as
What some might think is
In the short term
In the near-future
Short-term
What matters is
What counts is
There's been a lot of
There's been a ton of
A lot has happened
We've seen a lot of
For the same reasons
This says a lot
This tells you something
My position on this
Where I stand
I figured out
It dawned on me
One notable aspect of
One standout feature
One key part of
Those comments strike me as
That comes across as
That seems to me
I find those comments
An interesting fact
A neat piece of info
A notable fact
I was struck by the information