Since joining the ACC in 1992, Florida State has dominated the league in football. Only Clemson has come close to keeping up with Florida State.
Basketball has been a different story. Pat Kennedy had two good seasons when FSU first joined the league, including beating Dean Smith in the Dean Dome his first time out (this sparked one of the great ACC lines ever with Sam Cassell calling the folks in the Dean Smith Center a “cheese and wine crowd,” a tag which stuck). He made the Sweet Sixteen and the Elite Eight.
After that though his luck turned sour.