Difficult question! I don't think it's the amount of fights that makes you a great fighter though, for example JCC is one of the all time greats IMO and fought 115 times taking on some great names along the way such as Angel Hernandez, Pernell Whitaker, Hector Camacho, Frankie Randall and Meldrick Taylor just to mention a few.

But in my eyes SRL is even greater than Chavez in the grand scheme of things and perhaps it has something to do with his rivalries with other ATGs such as Duran, Hearns and Hagler. I suppose Greatness is something that the media gives you and if your lucky (or maybe unlucky) enough to have opponents who could be in all time p4p lists, never mind just current lists as SRL was, then you have a chance to create your own greatness only fighting 40 times in your career as he did!