Who is a better defensive fighter: Pep or Mayweather?

[Max Power]

We all know it's Mayweather.

MAX POWERISM IN ACTION!!!!!!!!!!!!!

OK, I will expand for those who are not familiar with FAMOUS Max Powerism 101:

1. Bigger is better
2. Newer is bigger
3. Newer is better

Mayweather is 1) newer 2) bigger => 3) he is better!!!!!111111111111111

Objectively though, lightweight Mayweather should have won over Pep

LOL Yes but you must augment those with the term "IN GENERAL" after those points.

Smaller fighters DO beat bigger ones, just statistically much less.
Newer fighters from respective weight categories are bigger because of modern stripping and rehydrating, changing definitions of classes and increasing size of HW's
Newer is better in general the further removed but SOME past time fighters may hold their own across a significant span.

My analysis here was in fact based quickly and resolutely on nothing more than simply watching them fight.

Mayweather is hands down the most defensive fighter of all time (or was). Beyond dispute really. And if there's any fighter I can't stand more than Ali, it's Mayweather!