Who wins?
Mabel vs Bill Cipher
Bill Cipher wins 87% to 13%. 133 more put them in the same row. From Gravity Falls Characters Tier List. Pick a side.
FrozenTaco on Mabel: the funniest character in the show by a mile
humble_frog_7041 on Bill Cipher: a yellow triangle with a top hat somehow became the scariest villain in Disney TV
Gravity Falls Characters Tier List: the full ranking