hmm I think this would be a tougher fight than most expect. I think Chambers has great ability and these two are the clear front runners in the division next to the klits. Chambers has great speed and skill, and having fought Dimitrenko and sam peter he's proved he can take a punch and handle someone much bigger than him.
Chambers could be a very hard fight for Haye. For me, whether Haye succeeds at HW largely depends on his punch resistance. He has the speed, power and skills to succeed but there is still a question mark on his punch resistance at HW. If it is weak and he can't take a few digs of the relatively light hitters then i believe the quicker ones like chambers could give him the most problems as these stand the best chance of actually hitting him.