When considering head to head battles, natural weight and age need to come into play.
I don’t doubt Floyd beats Manny at any point in their careers, but Pac’s Natural ideal weight is probably 122-126. Floyd is probably
ideally a 140 pounder. That’s 3-4 weight classes, so Floyd wins head to head, but is he really greater because of that? I don’t think so.
Same reason I think Duran is greater than SRL, Duran is naturally a lightweight and Leonard a Welter. Ray would beat him the majority of the time, but he’s also naturally bigger.
Even recently, Mikey Garcia lost to Errol Spence, but at this point I think Mikey is the greater fighter.