Along with Roddy Piper, head and shoulders above pretty much everyone else. There were better wrestlers in the ring, but Piper and Flair perfected their personas like no one else. Four Horsemen was an act like no other and Flair was at the center of it.
PS--Flair was much bigger physically when he got into the sport, but slimmed down. I wouldn't be surprised if he took some supplements at some point to try and battle the aging process, but I doubt he was into the science of steroids like Superstar Billy Graham and others. I'm afraid for Ric that it was the booze.