I used to think Manny was all speed, a little bit of power but had very crude boxing skills. Yet, he did improve and continuously does so every fight after his loss to Morales. That is what is makes him different. It would be unfair to compare both fighters now. Let us wait till Manny retires and judge him then. As it is, Pernell's record and abilities may give him the edge for now. However, if Manny fights Mayweather, JMM (again), Cotto, maybe Mosely and wins convincingly, then there will be no question who has a better resume and who is a better fighter. Hell even if he loses to one of the four mentioned, I would probably cast my vote his (MP) way.