Mundine deserved to be, because he has limitless talent. His choice of opponents is what sucks. He went through a patch of fighting good fighters, but has dropped off again.
Alex Arthur he was handed his belt on a technicality and lost on his first defense ohhh Erik Aiken he won by DQ prolly the worst belt holder ever
Luis Santana and Eric Aiken immediately spring to mind. Both one their belts on technicalities (the first on flat-out cheating), and neither was able to successfully defend it in a fight that didn't involve the other fighter getting disqualified.
Luis Santana sucked ****...... That culero won his title on his back.... He then defended it that way, too... MR.BILL:fire