GOAT: GSP
Counter Argument:
-Fought some of the weakest WW/LWs in history (Dan hardy, Mayhem Miller, Serra, Koscheck x 2, Hendricks, Fitch)
-Fought in an era where fighters had the TDD and stand up ability of a wooden plank
-Arguably loss to Hendricks
-Only beat BJ Penn due to Penn's gas tank...