I can't see anyone taking GSP right now, unless there's someone in another league outside the UFC that I don't about. I'd love to see him move up a bit to fight Silva (like in the old days when Gracie at 170 lbs would beat up guys at 220). Or maybe Henderson (who looked great annihilating babbling big-mouth Bisbing) will move down...
Lesner is a frikin monster. He's got to be 300 lbs. He made Mir (250+) look like a little kid, and whooped him like one too. Interesting that Coture did a lot better than Mir. There's another big guy (forget his name - pretty new / young), who hits super hard.
Shane Carwin. He walks around pretty close to the size of Lesnar. Carwin hasn't lost in the UFC yet. Lesnar should thank his lucky stars that Dana and Fedor will never be able to work a contract out.
Honestly, if Lyoto Machida moved up to heavyweight I think he could dominate just like he has the light heavyweight. The dude is Fedor-esque himself.