It was a suprise to alot of people that no Capcom created characters
featured in the final brawl roster. This may be why:
Rumor: Why Is There No Capcom In Super Smash Bros. Brawl?
It basicly says that Nintendo were still annoyed at Capcom for allowing
Resident Evil 4 to be a Playstation 2 title, when it was originally a Gamecube
exclusive.