Mm-hmm. My gut feeling is that it's Ankh, because his voting record's slightly worse. He's the one who voted for Sanosuke at the last minute in suspicion, which is what gave Necoco a chance not to go up. He did the thing with the feathers, which makes most sense as a measure for a wolf who's already had one wolf go out, although obviously it's something that a sheep could do too. And he voted on Rachel and me in the first round, which makes sense as if Leo was a wolf.

Rachel's voting record's not really determinate, since I can see Lambda telling her to vote for her when she's the last vote if Lambda was the wolf, but I think what's inclining me against her is that she voted on Necoco early on. Assuming he's the wolf - and if Sanosuke were the wolf I have no idea whatsoever who the last wolf is - that's a bit risky, especially after it would've already backfired on her once. I don't think it's particularly likely that a newbie wolf would do that, especially if her only other wolf left in the game is also a newbie.