Are we talking about "worst" as in biggest assholes, or the dullest? If by "worst" you mean the dullest personality... its gotta be Shane. Great fighter, VERY nice guy, but always lacked the charisma to make him a superstar. He's just a boring guy, who leads a family life, and that doesnt catch interest. Chad Dawson, even though I'm a fan, is a pretty dull personality also.