To me, it's not even a competition. Petey and August are apples and oranges: they function on different planes, from different strengths. August is dry, reserved, cerebral; Petey is creative, playful, and improvisational. Right now, Petey's only weakness is that he is more self-conscious than he used to be (this, I think, is just because of where he is on the adolescent curve; August, being a little younger, is not yet in the grip of the same angst). And even during the so-called battle, Petey got off some responses that were quite zingery, just on such a different level from the one where August is firmly planted that they didn't register.
That said, much as I like August, Petey will always come first in my book.