I feel like for die hard fans, Mayweather is pretty underrated. Ifeel like fan's hate over modern boxing and love for old boxing may play a factor in this one. Mayweather defense is really underrated too. I feel bad for him people never tried to rank him at top 10. The reason why mayweather deserves to be top 10 (or 5 in my opinion...) is becuz he had perfect defense. He literally used every single textbook defense and just like Ali, Mayweather is one of the guys who could readjust his style during a fight. I also feel like Whitaker's defense is kinda overrated too considering fans say his defense WAY better than Floyd. When I talk about Floyd's defense people say it's laughable or I'm outta my goddamn my mind. Do you know what is boxing defense ? It consist of counterpunching, head movement, shoulder rolling, parrying, footwork & blocking. Mayweather's defense is much more complete than Whitaker, literally look at this: Blocking: Mayweather Counterpunching: Mayweather Head Movement: Whitaker Shoulder Rolling: Mayweather Footwork: Draw Abilty to adjust during a fight: Mayweather Handspeed: Mayweather Fans might get too dazzled when watching whitaker dodges a flurry of punches. And maybe becuz fans think that defense are just dodging punches even though there's so much more of that. Winky Wright is an example of a good defensive fighter even though he never dodge that much. Here: Heck! there's a video of mayweather being a perfect defensive master 10 minutes. I feel like that highlights show how good mayweather as a defensive master. Can't you see how marquez had so much trouble ? and if dominating marquez is not good enough to show how good mayweather is, I really don't know what will. Not to mention that Whitaker is dirtier than Floyd. No hates for whitaker, but you gotta admit that whitaker is a really dirty fighter. you might hate it but this is the truth. Try appreciate Floyd's defense man... Just try appreciate it.