I'd say he would beat Sherk and Hughes (today's hughes, not collegiate Hughes), but would have trouble in straight wrasslin with Fitch and Kos.
Vitor29 - To think that GSP trains with the Canadian Olympic team and that he doesn't have a clue what to do on the ground in wrestling is beyond retarded.Yes. Look at the Trigg fight and, even shedding away the MMA aspects, it's obvious that GSP was controlling the positioning easily.