Really this is between Barnes and Polnut at this point, even though ZuWo is in the final three. It comes down to who gets eliminated in the third round. If Polnut is eliminated, Barnes wins. If Barnes is eliminated, Polnut wins. If by some chance ZuWo is eliminated, Polnut wins. Polnut also has the advantage of more first preferences than Barnes, so he wins a tie. So Polnut has the edge, but Barnes could still come out ahead.
Barnes, however, is not performing as well as Polnut in a 2PP matchup with ZuWo. A Polnut elimination may not necessarily mean that Barnes wins if there's a strong late turnout for ZuWo, which we've seen in the last hour or two. However, if Polnut comes first or second, he wins. ZuWo and Barnes must push him to third in order to have a chance at the win.