I'm going to go with Roy. There's just a lot of feats included with roys resume that Mayweather wouldn't attempt. (The basketball game before the fight, fighting Hopkins and telesco one handed. Mayweather's only official knockdown came from the pain from breaking his hand in a fight and too his credit he survived for the decision...but you never saw him schooling guys with one hand the way roy did.

There's a difference in the perceived level of competition. The games changed a little between the two fighters even though there was a span of years where they were fighting at the same time. The level of Roy's competition was dictated by mostly by title defenses. He sat on top of a pile of belts and defended against his mandatorys. Floyd, Martinez, broner, Paul Williams has/had the luxury of free wheeling through divisions cherry picking champions for belts without having to wait in line because the super fight money has trumped the honor and rules that used to be prevalent in the fight game. Roy only really started doing that at the end of his career and it was unnecessary. Can you imagine Roy fighting DLH at a catch weight and smoking him out 5 rounds...Or Trinidad... and doing to them what he did to pazienza.

Every generation of boxer has their hype jobs.. but there seem to be a lot more now. You grab a volume puncher and take him to GNC and get him some supplements, give one of his opponent's ex wives or gf's to talk crap for a free trip to vegas and let the fighter's Jaw at each other for a bit and you label it to the casual fan as bad blood.. The fight sells and everyone gets a piece, but no ones looking at the disparity of the talent except the students of the game (us).

Roy and Floyd are 2 special fighters but the environment has changed... so measuring them equally is harder.