One champion was a three time World Heavyweight Champion, Muhammad Ali, the other was a five time World Middleweight Champion, Sugar Ray Robinson. As much as I thought the world of Ali, I would have to go with Ali's idol, Sugar Ray Robinson.
Ali had many great attributes including an iron chin and immense mental toughness (and underrated functional strength) which served him very well in his later career. However Ray was more well-rounded and technically superior.
PBF struggles to make top 50. Too much ducking post Corrales, which you can't erase from his career. Otherwise Edwin Valero is ranked above PBF.
