This almost lived up to the hype. It was an excellent film, but the pre-launch hype and some of the early reviews made it sound like this was going to be Marvel's Godfather II (😛),
Anyway, in the top five best MCU films, imo. Just behind GoTG, AA and CA:TWS, level with TIH.
Cap was excellent, Tony just perfect as borderline detestable and Ant Man was awesome. Loved the Stark - Parker scenes and Black Panther fitted in great, especially the way that he was portrayed as being a little detached from their blind civil war.
Actually, that was perhaps the only reason why I wouldn't say this was the best MCU film. The premise, the entire reason why they are at war with each other ... It wasn't strong enough. It felt forced. Even a simple manhunt for Bucky, with IM out for his head, would have worked better than some issue with signing up to a collar and leash. It's the Avengers, they wouldn't just obey orders, no matter what they signed up to. No way would Stark or Widow or Hawkeye give up their own principles.
The actual comic's reason for the Civil War, the registration act, was much more believable and much more emotionally resonant. And they could have gone with that too - citing the Inhuman epidemic that's been going on in MAOS as part of the reasoning.
Not sure why they had to use collateral damage (in the course of saving the whole bloody planet) as the reason.