Although a good chin is obviously important for a boxer It amuses me when a boxers best attribute is how good he is at getting punched in the face. FWIW I think Haye would win but it's by no means a certainty.
Haye wins without a doubt by KO. Everyone underates him you need to watch his fights and see the power, speed and natural abillity the guy has. He will unify the division.
I think it would be an explosive fight. Adamek would have to pull a Cunningham and score some knockdowns or a knockout to win the fight. Otherwise I think Haye would probably win on points.
If Haye can rock Valuev whilst punching upwards, sure as hell he can rock Adamek whilst punching properly, obviously Adamek has a punchers chance but i feel Hayes chin will have improved through not cutting weight for the cruiserweight limit. Adameks situation is different i think, he can probably still make cruiser limit and dominate but his relatively small frame at heavy will hinder his movement and stamina if hes packing over 220lb on any given fight. I feel Haye would win by 5th round KO due to his superior speed and skill:smoke