Battle of the Chucks

Chuck D versus Chaka a Khan (ok so I stretched the rules a bit, but say it fast and it can sound like chuck)

Chuck Brown, the Godfather of Go-go (gotta represent the nation's capital)

Also wasn't Chuck Barris (I think that's his name) the guy who was a game show host and a CIA hit-man. Confessions of a Dangerous Mind was about him.

Chuck Yeager-first man to fly faster than the speed of sound. That's pretty bad ass