Pac has good resume and it is a bit better then Mayweather but he was koed when he was a Flyweight champ then had draw with ok fighter lost to a Morales on the slide which i think is fair to say because he lost before he beat him and after he beat him. Barrera was his best win but had been tooled by Jones who was a good fighter not great before hand. Also big thing i have against Pac is he never really beat Jmm in eyes of anyone most people have Jmm winning all the fights the third one was called the Robbery of year by ring magazine and the Jmm at 40 knocked him the fuck out few i think that goes against him a tad. I mean Mayweather literal tooled Jmm say what you want about Pac beating the guys Mayweather did better but most were after they lost to him and unlike Pac Mayweather never lost to Jmm.