Mayweather couldn't stop him if his life depended on it, Mayweather would pull the same crap he pulled on the guy that beat Judah awhile back. Stick and run, there is no way he would sit down on his punches, he was terrified of Oscar.
PBF would do whatever he wants with Margarito and has stopped many fighters with similar attributes to Margarito who are even better than Margarito. PBF was not terrified of course. He fought him at the weight Oscar is most comfortable at now 155 pounds and beat him clearly period. What the hell has Margarito got to worry PBF. His pressure yeah that would do the trick. PBF has faced to many pressure fighters. PBF is not Cotto who got tired or would neglect the body. A guy who lost to Daniel Santos and Paul Williams will never beat PBF. Margarito is a game lad I will give him that but he is extremely limited. It is as if his win over Cotto covers up his numerous flaws.
Floyd ain't goin nowhere near Petey. :bart Put chips on it. Not enough money, and he would be fighting an uphill battle. Paul would beat his ass to sleep. Money can't hurt him, and would have a tough time keeping him off. It would be the "black" version of Margarito-Cotto.
I would pick Floyd to beat Margo. It would resemble the Baldomir fight except that Margo is a lot bigger and throws a lot more punches. It would be a lot closer in my opinion b/c of the pure aggresion Margo has. I would make Floyd the favorite in all the fights around 154, but I would love to see them anyways.