Tommy Morrison. Had he lived a more disciplined life and really focused on the sport, he had the tools to be at least a couple levels higher than he wound up reaching. Max Baer is another good shout.
Sanchez yeah, but Ayala and Valero had illnesses that helped their career but not society, nor ultimately themselves...
why Howard Davis? he was matched up against soe formidable competition. he just wasnt good enough to beat some of them. want to see classic boxing? watch the job Hector Camacho does on him, winning 10/10. it was a BEAUT! ten yrs later, he would give Howard's olympic buddy Ray Leonard, a dose of the same brilliance
omm Morrison sam thing. he caught to many hard shots flush and caved in another case of the white heavyweight falling prey to the stronger, more athletic black man