Pep isn't in Mayweather's league to be honest. Pep was a quick runner with great reflexes who could control range, but he had a lot of trouble protecting himself on the inside. Saddler got him against the ropes and brutalized him. Floyd has the runner/range controller dimension, but he also had the ability to fight in the pocket and protect himself on the inside and under pressure.
In a nutshell, Pep excelled when he could control where the fight took place, Floyd excels wherever the fight takes place.
To be honest, in terms of defensive ability I don't think Pep is in the same league as Mayweather, Whitaker or Locche. Three guys who could slip punches from any distance, from any angle, and who were never knocked out
Bookmarks