Does anyone remember the GSP vs Josh Koshcheck fight? I know that BJ's BJJ is top notch, but I really don't think that his takedown defense is actually that much better, if at all than Kos'. Kos' wrestling is better than outstanding, and he couldn't even stuff GSP on his takedowns. I think that GSP has the best functional wrestling for MMA in the UFC. He's going to take down BJ Penn at his own discretion, whenever he wants, from the opening bell until the end of the fight. Like someone said earlier though, what happens once the fight hits the ground is an entirely differently topic altogether.