[myTouch 4G General] Jon C:
I've owned all three of T-Mo's flagships, so I can give you a brief breakdown of my opinions in regards to T-Mo's high-end line-up...

I used each phone for at least 30 days, and obsessively documented both my satisfactions and gripes with each device.

Prepare for OCD overload! :cool:

Galaxy S / Vibrant:

Pros

Best media playback device, hands down (XViD, H264, HD videos, anything really).

Best DLNA streaming ever! Streams to a PS3 like a bad-ass little wireless HDD!

One of the better-sounding speakers on a phone.

Samsung's 'White Noise' Alarm Clock is pretty sweet.

The best parts of the iPhone on Android (Calculator / Calendar / Alarm apps)

Amazing quality screen.

Best Camera outside of the iPhone 4.

LED Flash is not really missed.

HD Video Recording is excellent, and the sound is quite nice as well.

Bluetooth 3.0 / Wireless N support

Great Swype device.

A huge amount of storage by default.

Super-fast 3G Performance when signal is strong.

Cons

No Hardware 'Silent' Switch.

Cheap construction -- creaks and feels like a kid's toy.

Blue-tint to everything / Ghosting of Text.

Absolutely broken and utterly worthless GPS.

Short battery life.

Laggy SD card access.

Software updates always trailing behind.

No dedicated Camera Button.

Hardly any Developer Support.

No notification LED.

No LED Flash (only missed due to Flashlight apps).

HTC G2 / Desire Z

Pros

WiFi Calling + WiFi Tether

HSPA+ support.

Mostly-stock Android 2.2.1

Battery Door Latch.

Decent screen.

Best Physical Keyboard on a phone, ever.

Lightning-fast, despite lower clockspeed.

Mostly-solid Construction.

Dedicated Camera Button.

GPS works like a champ! Lock within seconds, great accuracy.

Tons of Developer Support.

Notification LED.

Would be completely amazing, if you could just get one with a solid hinge!

Cons

Still no Hardware 'Silent' Switch. :(

T-Mo Bloatware.

Trackpad is not accurate / does not work well.

No Wake On Trackpad. :(

Trackpad Notification Ring is really hard to see / only one color.

Stock Android's Copy and Paste is miserable.

Ridiculous floppy hinge that falls down when the phone is tilted.

Dedicated Camera Button feels really cheap compared to mT4G's.

MicroSD card is not hot-swappable (change out while device is on).

Speaker is really quite miserable sounding -- one of the worst.

Really low-quality Camera and one of the worst LED Flash implementations I've ever seen -- pictures look abysmally awful.

Terrible video recording, as an extra kick to the nuts.

Small amount of storage.

No FFC.

Terrible for media playback in every way.

Lock button is too recessed.

Typical HTC Quality-Control Issues (check for dead pixels / some screens look kinda ****ty).

HTC Glacier / myTouch 4G

Pros:

WiFi Calling + WiFi Tether

Solid construction -- this thing feels like a hefty little tank.

The lastest and greatest hardware.

Too Much RAM! (768 v. the standard 512)

HSPA+ support.

FM Radio! :D

Docking Pins for Desk / GPS cradle accessories.

Nice little kit 'travel case' with high-quality headset, USB cable and wall plug.

Trackpad that actually works really well / Wake On Trackpad (iPhone-style).

Perfect GPS, like the G2.

Better Camera App than stock Android.

Dedicated Camera Key is really nice!

LED Flash performs much better than the G2's.

Better UI for adjusting Times in Clocks / Calendars (iPhone-style scrollwheels).

Better Copy and Paste, ripped directly from iOS.

Neat 'New Sense' features: Flip on-call to speaker; flip while ringing to silent; louder in-pocket; softer when picked up.

Pretty HTC eye-candy widgets / the infamous Clock!

Cons

Again with the Hardware 'Silent' Switch! :(

Carrier Bloat.

HTC Gallery sucks (no Picasa support!?).

DLNA sharing is too hard to set up / doesn't work very well.

QIK blows for Video Chat.

HTC Lock Screen sucks (no Froyo Lock Screen option).

Media Playback is - again - abysmal compared to the Vibrant.

'MyFaves' is useless and locked to the Dock Launcher.

HTC's Contacts App is bloated, slow and completely annoying ('T-Mobile' account syncing? Yuck!).

Small amount of storage.

'Genius' Button is pretentious and mostly useless. Lack of a Search Button is really, really, really annoying.

Lock Button is too recessed on most units.

Battery Door breaks fingernails.

Speaker quality is not amazing (but better than the G2's).

Phone is kind of a mish-mash of designs / isn't as pretty as the N1.

Typical HTC Quality-Control Issues (dead pixel / some screens kinda meh / FFC is sometimes not aligned with cut-out hole).

Over the course of the past few months, finding the 'perfect' Android phone has been super difficult for me. The G2 was almost it, but I couldn't get over how cheap / annoying that hinge felt. I loved the feel of the keyboard, and ended up using it a lot, but I prefer slate phones. That said, I think 4" is the sweet spot, and it's annoying that T-Mo and HTC opted to downsize the otherwise-Desire-HD myTouch 4G into the 3.7" form-factor.

If I could sum up my reason for sticking with the myTouch 4G, it would be: "Everything on it just works (for once)". There are no 'GPS/Lag Fix' bugs to worry about, and there isn't much hardware on it that would potentially fail. It has neat little nerdy features like FM radio, and in general, is a little powerhouse. It feels like a device that has been in the making for a while.

If you're just looking for a super-solid Android phone, I can't think of a better one than the myTouch 4G, right now (and I've thought about jumping ship to other carriers / played with every phone). Some nice docks are on the way, and T-Mo is actually going to support this phone. I like it a lot.

However, if you have any interest or need in watching movies, this is not your device. This is really annoying for me, as I like to watch shows on breaks / commutes; but it's something I'll just have to get over. The Vibrant was like a bad-ass little plasma TV that could play anything I loaded onto the 16GB internal memory, and it's hard to not have that capability on other devices. :(

If I could do it all over again, even knowing about and having handled a Nexus S (which is solid-feeling, if you had any fears based on the Vibrant), I'd probably still pick the myTouch 4G. It just feels so solid and well-designed. The 'Genius Button' is probably the biggest deal-breaker for me, besides 'MyFaves'. Other than that, I really love MySense with all of the 'New Sense' features.

I say: myTouch 4G (and I feel as if I give all devices a fair shake / run through the discrimination chamber). :D

Hope that helps a little. Enjoy your phone! :D