I thought it was a very solid addition to the Marvel franchise, much more complete and (slightly) more realistic than the first one. The action sequences with Cap are just cooler than say the Hulk or Iron Man because even though he's genetically enhanced he's not vastly overpowered and for the most part facing humans. The Winter Soldier was badass as well with a few great scene-stealing moments. I wish they had left director Fury as being killed off though. I know it's too much to ask for a truely major character death like Rogers or even Black Widow but I want to feel a least a little concerned for their safety when I watch a Marvel movie. Maybe I've just been watching too much Game of Thrones but it's much more exciting to me when you know that there's the possibility someone pretty important could die.
Anyway, I would definitely rank this as the best so far in Marvel's Phase 2 and it got me super pumped for the Avengers to reassemble ! Grade: B