Maybe, but I do think Naz gives Floyd a very uncomfortable night. One of Naz's best attributes was that he could basically hurt you from any position and angle - he was just very unconventional. He would have, at the very least, kept Floyd on his toes for twelve rounds.
True, the version of Hamed before he listened to all his hangers on and left Brendan Ingle would have been all wrong for Mayweather. Probably would have hit the deck himself, but I could see him putting Mayweather on his arse as well.
Naz won 4 rounds on my card against Barerra, against PBF he might have won 2. PBF was an offensive dynamo, when he put his punches together. I truly believe NAZ would have had a rougher night with that version of Floyd then he did with MAB.
Like others have said, I found him too cocky at the time and was not a big fan. How I would love to see someone like him now to liven things up a bit.