Who do you fancy at Lightweight. Shane has some similairites to Meldrick Taylor in that he fights with fast fluries and likes to get involved. He was also a brilliant body puncher at that weight and was a harder hitter than Taylor. Would this be enough to slow down Chavez or would Chavez's constant body assault and pressure break Mosley down?
You should check out their sparring, which I believe is actually at 135, on Youtube. Chavez really seems to hurt him with some bodyshots, Mosley really fires back heavy artillery a few times when Chavez connects with those bodyshots.
I see Chaves's pressure getting to Mosley and taking controle at about the 8th round and taking a UD.