Captain America, Psylocke, Hulk, Iron Man, Spider-Man, Magneto and Shuma-Gorath have the best themes in this game. Nothing against Wolverine, Blackheart, Juggernaut and Thanos's themes. They're catchy as well.
1 of my favorite themes from marvel 1. I feel like this soundtrack sounds a little better than the rest. But don't get me wrong I love marvel vs. Capcom 2/marvel vs. Street fighter X-men vs. Street fighter. Such a shame they don't respect psylocke to be in the other marvel vs. Capcom games. I liked her moves/combos. I don't like marvel vs. Capcom 3. The characters look way better 2D