I think as the fight goes on the physical advantages will take their toll on Adamek, as I don't believe he has the punching power to knock Vitali out, so his only route is decision.
He can win if he adapts the same tactics Haye used against Valuev, but then Vitali is levels above Valuev, so it's definitely going to be a difficult task for Adamek.
Vitali by late stoppage.