NAILED IT

Rating: 10/10 (24 April 2019)

This movie does everything right. I was so pleased and satisfied walking out of the theater, it's really hard to understate it. The Russo Brothers absolutely lived up to the expectations and delivered the epic conclusion we were all waiting for. You can probably nitpick this movie if you want (as you can any movie), but to me that's pretty much what you have to do to find flaw with it. I think that the emotions throughout are played so well and we get those moments with each character where they feel human, especially with all 6 of our original avengers. Each has their moment to shine and I truly loved it. The humor was well-used, the story made sense, the finale was downright perfect, and it was an all-around great movie!
SPOILERS
My favorite stuff

The beginning with Clint's family was downright heartbreaking to watch, and a great way to bring that human aspect to the story, seeing someone who had no idea what was going on be affected by the snap
The subversion of expectation meeting thanos and realizing he not only doesn't have the stones but he doesn't care
Paul Rudd. What a guy.
The second act plot is really done well, it makes sense yet the way they go about it with the callbacks to almost every movie through cameos or reliving scenes is great, especially in the New York scenes (specifically the elevator scene from winter soldier being called back)

-Black Widow dying is another expectation subversion and is done very well

Tony having a moment with his dad is great to see
The way by which thanos is reintroduced as the villain is actually brilliant and gives a new perspective to his motivations and the way he destroys the facility after the reversal snap is great
Cap picking up Thor's hammer is all kinds of yup
Giving our main three some alone time fighting thanos is a great way to give them their time to shine
Avengers Assemble is everything I didn't know I needed.
Tony's arc is done so well and how he sacrificed himself reminds me so deeply of the scene in Avengers when cap said tony wouldn't sacrifice himself for others.
Cap getting to dance with Peggy
Thor joins the Guardians!

My negative stuff (these didn't really bother me that much but a little bit)

The whole fat Thor thing kinda makes some of the dramatic moments later on kinda weaker in my opinion
Same with half-hulk, almost felt hard to take him seriously at first but it made more sense as the story grew
Not sure I can buy thanos changing his mind for his plan to cleanse the universe by destroying it and starting over, but I like that he's willing to die for his own cause
would've liked more action especially in the first act but I appreciated the emotions