13. Stone Cold Steve Austin
Oh hell yeah, can you imagine Stone Cold Steve Austin raising hell inside the UFC octagon? UFC's legendary announcer Bruce Buffer interviewed Austin in 2010, asking him if he would've liked to have competed in the cage. "If it had been around a long time ago you know itd be something that I would have been really interested in because I always liked individual competition," Austin said. "Im not sitting here talking to you saying I would have been a UFC World Champion, Im just saying that I have the mentality and the mindset that I would have liked to go down that road had I been exposed to it sooner in my life." While the thought is a fun one, he'd probably have found little success in the UFC. He's a big guy and built well, but in terms of a major league athletic background he's limited.