I think both ruckmen did well and it might have been a toss up between them. However, in saying that, I don't think either of them did enough given who they were against. In fact, full credit must go to Williamstown which was a well drilled outfit with a lot of their players being a step away from AFL list level and yet showing up some of our MFC players. Apart from the players who went up to the AFL because of late injuries at Melbourne and the loss of Fitzpatrick and Toumpas in the second half, Casey was without two of its own important VFL listed players in skipper Panozza and forward Smith. They are now in a position where they must beat Coburg away to be sure of making finals.
On Mitch White, I agree that while he was impressive, I wouldn't have rated him Casey's best. However, these votes are probably given by the coaching panel who are privy to player instructions and the like which would IMO heavily influence how they vote. A player can only do what his coaches ask them to do and in those cases the player will poll better than a flashy footballer who breaks team rules.