My bad...I don't think GSP was a college wrestler but he has some of the best wrestling in MMA...and can be rather boring to watch at times but he use to be very exciting.
I think the generally consensus is that wrestling is the best background. You have to be well rounded to have any chance of being a contender but wrestling is a great starting point. I do agree that guys that are no more than wrestler are very boring to watch and as a rule they hate being put on...
But I will say as a man that has spent a little time in the Hard Drive gym in CR that it is pretty noticeable when a wrestler comes in that doesn't like to get hit.
Wrestling is by far the best base for MMA. Wrestlers dictate where the fight takes place but you have to have a little boxing considering each round starts standing.