well the guys at 154 also move a hell of a lot slower. Judah definetly has the power to knock em down. Might not be as bad a move as what you guys think.
I don't think so, I dont see him dropping Forrest, Ouma, Karmazin, DlH, or Sims. In fact he might get stopped by alot of guys at 154. AT 140, he could definitely grab a belt, I would favor him over everybody except maybe HAtton. And we don't really know what HAtton will do after the Mayweather fight, so the division might be wide open. He has already beaten the 2nd best jr. welterweight (Witter), a rematch would be interesting.
sometimes moving down and getting as small as you can isn't good for your career, or guarantee that you will be stronger or more effective at the given weight, a lot of times fighters have moved up and done better at a higher weight, cory spinks is a good example of a fighter with a questionable chin who moved up in weight to light middle and middle and has yet to get his chin checked
Zab is shot from the beatings he took from Tszyue, Mayweather,Baldomir and especially Cotto. Malignagi would win a UD and probably would knock him down in the process. Hatton would knock him out with a body shot.