if I had to say who was greater? Jones Jr. or Mayweather I would say Jones Jr. Even though he avoided alot of competition, the competition he did face like Toney and Hopkins and Virgil Hill. he beat them easily and well. He had a great speed and that speed with power was impressive. You cannot say the same for Mayweather who piddy pats more and gets his hand hurt. Jones I think was better. Mayweather is more of a amatuer style. Jones put more power into his career.