Okay, I've been listening to the Captain America theme over and over again, comparing it with the previous Cap themes. It's funny how a song can be both better and worse than it's previous incarnations. The MVC3 version of Cap's Theme suffers from what I like to call the Rockman World II Conundrum, in which the arrangement of the song is really excellent, it's just that the choice of instruments/sounds they decided to use just don't give it its "Final Justice."
It's not that bad with the MVC3 Cap theme, but it's just that really REALLY high pitched screech they use from 0:05-0:15 which strikes me as very putting. From about 0:15-0:35, it's hit or miss, but I'd have loved to hear the techno part as an electric guitar-ish sound. However, after 0:35 is when the song really shines and shows its potential. A lot of the background "strings" work EXTREMELY well with the song, as do the background "drums." They work so very, I'd kinda like to hear them without the main techno. What I truly love is that it goes into the loop better than any other version of the Cap song at 1:05, and that one dramatic horn they do at 1:07 is simply [tornado fang]ing awesome.
So yeah, that's my take on that particular song!