I definitely like the TWS tactical suit because it was much better for the job he was doing, but I did miss the colors. I didn't like how bold the Avengers suit was. I think the AoU suit has good balance.--> my favorite is definitely the AoU suit
Check out this amazingly cool digital illustration of Captain America wearing a suit of Iron Man type armor that was specifically built for the all-American hero. It was created by concept artist Abraão Segundo, and he calls it "Captain Iron.