Who are the most underrated or overlooked past/present fighters to ever step into the ring? You know the guys that get no respect regardless of the evidence in their favor... Larry Holmes, Hector Camacho, Stanley Ketchel, Jerry Quarry, Eddie Chambers come to mind but there are many more...
Right now, it's guys like Humberto Soto. Also, if you go into the lower weight classes, guys like Roman Gonzalez don't get any love.
My very first thought. It isn't that anybody ever really speaks ill of him, so much as enough good isn't spoken of him.