i sure as hell aint a Zab fan. But I have to call this a toss up for two reasons, one for each fighter.

1) I saw when clottey fought margarito, and until he broke his hand, marg had no idea what to do to hit him and tony showed he is more vulnerable to straight punches than hooks. he wont get knocked out or maybe even down, but clottey was scoring a lot. his defense and chin are both very good. i dont know too mcuh of his power. he looks strong, but in boxing, a chiseled physique means jack shit. i.e. jeff "left hook" lacy

2) Zab Judah has some kind of mental condition. If he strikes you solid and you dont move, he goes into full on brooklyn street fight mode, complete with shit talkin between punches and slap boxing stance (see mayweather fight before the brawl). He suddenly forgets that he has great physical boxing gifts and his resolve disappears. He was tagging PBF in the first 4 rounds, and then, for no reason at all cuz PBF didnt start turning up the tempo yet, Zab just stopped doin what was working. no more straight left hands, no more foot movement, and no more combinations.

This sounds stupid to me even as I type it, but truthfully whoever finds it easier to hit the other will win. Ill go with the minority and pick Clottey by late stoppage, solely cuz Zab has a tendency to give up. If the real Zab shows, it will go different, but we havent seen that guy in years.