I, too, thought Bribs was through the whole game. I'm pretty sure it's not Dorothy, and they played the innocent girl card in the last Mole, so it's probably not Heather. I'm thinking it's Bill.
I think it's Dorothy, I've suspected her forever. Of course it might be Bill and they rigged the game so that the Mole got the hotel room and not in the funhouse.
I think that Heather is the Mole because she was around Al and Bribs a lot of the time during the game and they have been the last two executed. I think Dorothy will win the game even though she is in a coalition with Heather, I am pretty sure she knows that Heather is the mole.