Different is that Mayweather still beat all the guys clearly and besides Cotto beat them first. Pac has never ever really beaten Jmm most everyone though lost the fight then he got kncoked the fuck out. Mayweather didn't lose a round to the guy and as for the fight depends how Pacs chin holds up. He has not faced a big puncher really since the Jmm destruction and look like shit vs Bradley. We will see in next fight exactly were both guys are which should be in coming year or so i guess right maybe more.