That 3rd act final battle.. from the moment Ironman, Cap, and Thor pulled up on Thanos on through RDJ's death scene.... was probably the GOAT single hour of comic book fan service ever. I wasn't sad or emotional about Tony dying or the fallout of everything; I kinda felt at peace, and content. Like seeing an athlete retire at just the right time, still on top and before he gets too flabby. Like Usain Bolt in the last Olympics when he still won that shyt but you could tell father time was catching up on him. That's how I felt about RDJ.
That said, halfway through the movie I said to myself that Infinity War was better. Granted, that's contingent on how invested you were in the older MCU movies and the lingering character subplots, bc this movie made a point to bring closure to a lot of ish outside of what was setup in Infinity War. Thor meeting his mom, Tony meeting his dad, Steve seeing his chick, Hawkeye's entire existence... personally, I didn't really come into the movie caring about any of that, so those scenes and anything with Ant-Man kinda dragged a bit for me.
I think this was the most charismatic they've made Rhodey,,, like ever. He was great with the jokes and when they had Carol wish him well specifically during the hologram meeting, I was surprised they'd give any subtlety to those two being an item in the comics.
The moment between Sam and old Cap was touching, although since Sam has had limited screen time since Civil War, I don't think the build up/weight of it is what it could've been. Still, it adds intrigue to this Sam and Bucky show though.
Black Panther had a cool lil action sequence and nice nod by having him be the first of the un-dusted heroes to appear for the audience applause, but otherwise he didn't really do much. Not that I expected much since this was about Cap/IM/Thor
Black Widow...
All in all, I found it a fitting end to the MCU phase (or RDJ) era, I thought they stuck the landing. I actually felt a bit burnt out afterwards. Still, it'll be interesting what is revealed in comic con as far as what they have mapped out next (past what's already been revealed).
Props to RDJ for turning his life around giving us a dope movie character straight from the funny pages