Who was the greatest? Some would say Harry Greb, some would say Sugar Ray Robinson but lets not forget Bernard Hopkins holds the record for most successful MW title defenses. He has to be on the ATG list. How would he have done against Greb or Robinson or Hagler or Monzoon?
Harry Greb for me - there is no one harder to argue against at least - Robby was undenyable at Welter but Harry is tops at middle