There's many ways to define "ACC's biggest winners". IMO, excluding Duke:
Best to play in the ACC: David "Skywalker" Thompson... he changed the game.
Best to coach: Dean Smith based upon number of wins, clean program, high graduation rate, and desegregation initiative.
Best UVA player: Ralph Sampson
Best MD player: Len Bias
Best UNC player: Phil Ford
Best Clemson player: Tree Rollins
Best G. Tech player: Which PG?
Best Wake player: Tim Duncan
I suspect my Dean Smith opinion will be well received around here.