After playing every Unmatched set, here's my totally objective, completely unbiased tier list:
S Tier: Bigfoot, Medusa, King Arthur
A Tier: Alice, Sinbad, Bloody Mary
B Tier: Robin Hood, Dracula, Invisible Man
C Tier: Beowulf, Buffy
Fight Me Tier: Bruce Lee (yes he's overrated, come at me)
This is based on competitive play, not casual. Casual tier list would look completely different.