Who do you think would be the biggest comeback success of all-time, Vitor or Robbie Lawler? Its tough to decide, Vitor was always hyped more than Robbie Lawler but he finally started living up to the hype starting IMO with his Matt Lindland massacre. Since then hes only lost to the best in Anderson Silva and Jon Jones. Lawler on the other hand after losing to guys like Pete Spratt, Nick Diaz, and Evan Tanner wasn't highly regarded at all for a while. But now being the WW champ, regardless of who you think REALLY won that fight, that's an incredible comeback.