I have watched both and i am not really sure who gave gatti a more gruelling beating between those 2.
But i would go with floyd who could have done a lot more but unlike oscar didn't have knocking out power to knock him out or isn't a mean fighter who comes to really hurt his opponents which is also 1 of the reason why a lot of other of his victims have been lucky to not be on the canvas a lot.
So it is up to you to decide thanks in advance,a big mayweather fan who cannot wait for him to show the world just how great he is in hopefully beating who i think could be his hardest opponent manny pacquiao.
Pacman really looks on roids in that avatar on yours man,now i see why floyd is so adamant about him taking the test.
not a lot of proof someone is on steroids by just looking at a picture