I think that you obviously have to say Tank Abbott. He really has no skills, and he had a bad record in the Old school UFC. Severn was a talented wrestler who never really learned anything else, but still could control some guys on the ground. Ken Shamrock is important not only as a fighter, but as a figure in MMA. If he would have stayed retired, which he should have, he would have remained that. While his skills wouldn't stand up against the fighters of today, he was someone that helped bring mma to an American audience. I think the same argument can be applied to Royce Gracie. Even though Rickson is the better of two, Royce took BJJ to the American audience. I think the problem with these guys is that we are comparing them to the fighers of today. You can't do that. It would be like comparing Jim Brown to today's NFL. Could he just run over the linebackers of today? Of course not, but it doesn't diminish what he did during his time.