if they wanna go by the whoever is the biggest draw, well from what i've heard it's Mayweather/Hatton had more PPV sales than Pacquiao/Hatton, and judging on how that was each fighters last fight, well i'd say that Mayweather with all of his trash talking is still a bigger draw, but out of respect that Manny is p4p #1 and that Mayweather gave up the claim when he retired, YET never really lost it, it should be a 50/50 split, Floyd was p4p#1 when he took on Oscar and yet got the smaller percentage, so the whole 51/49 or 52/48 is utter crap