Johhny Tapia and Alexis Arguello are the two guys I think of not just for grace in defeat but total class in and out of the ring, they were always gracious win or lose.. Often what they say after they win means just as much... Lots of fighters are cocky as hell till they get beat, then they try and show class... Which is certainly better than not at all, so Tyson and Hamed should be given some credit in their cases.