Bowe I guess. He's not just a shadow of his former self but a shadow of the shadow of his former self. Holyfield should have retired years ago, but now that he's come this far he might as well have a go even though I don't think he'll have much of a chance. Guys like Jones and Trinidad are past their prime but they can still put on a good show. No reason for them to retire if they still get a kick out of it. They would be wise to avoid certain fighters though (as in Tito's case, he should avoid Jones, not choose him as an opponent in a comeback fight). Hopkins, Mayweather and some of those other guys that have been mentionned: No reason whatsoever for them to retire.