floyd of course. If floyd chose to fight like pac, that would be incredibly sick but he doesn't. though he does let his hands go against defensive fighters who aren't a ko threat, and that is a sight to see. Just download his first couple of fights and you will be in awe.
I'd say floyd has slightly faster hands, mannys are hella fast and harder to deal with because you dont no how many he will throw at you, floyd throws 1s and 2s