Indeed, tonights game and the potential game seven are almost impossible to call. It's hard to pick anyone against Schilling in a big game, considering his history. However, Carmona is nothing to sneeze at and the Indians have, in general, looked better so far. That and they have already showed they won't let the Fenway crowd intimidate them too much.
If the Sox win tonight, I think game seven is ever harder to call for the opposite reason. Between Matsuzaka and Westbrook, who's going to be worse? And the Sawx have a nasty habit of being real clutch.
I'm picking the Indians simply because that's what I'd prefer.