I've been playing Fight Night 2004 ... it's my new favorite game.
I've always loved a game feature that takes practice and skill to master. The Helos in the Desert Combat mod for Battlefield 1942 were very difficult to fly, but once you learned ... watch out. I bring that up because the total punch control in Fight Night gives me the same feeling. It's very difficult to learn how to use it properly, but once you do, watch out.