I liked it I guess, but it didn't live up to the name and come on, how predictable was it? Was there any doubt as to who the winter soldier would be? Or that a certain character made it to the credits or that the organisation wouldn't be taken over completely and turned against the avengers in the upcoming movie. Which would have been cool. Plus they need Beast from X-men as the new Avengers leader as he was in comics...Just because I like beast and it contains the part of the storyline that turns him blue and claw-ey.
Plus they pushed his good guy at all costs persona to a cliche'd level. It was okay, just nowhere near as good as others.
Spoiler tagged this, you did have a few in there - Armadillo
I actually preferred the first Avengers movie to be honest...
I felt like they didn't really know what was going to be the 'big climax' so they kept going and going until the actual climax. I don't know, I just liked the first more.
Don't get me wrong though, I did love AoU :D