Bakeneko: 7 out of 10 ~ A demon cat
Breathsucker: 8 out of 10 ~ "Offer your soul! No? I'll TAKE it then."
Burger Chef: 11 out of 10 ~ Darn you for making me hungry again!
Catnipper: 8 out of 10 ~ Heh, a stoner cat. A good PrC for a Joker-esque cat character
Cats from Saturn: 7 out of 10 ~ chulhu cat (cathulhu?)
Catwitch: 9 out of 10 ~ "I'm the firestarter! Twisted firestarter!"
Familiar: 9 out of 10 ~ A CAT with a HUMAN familiar? What is this, a Russian Reversal?
Feral: 7 out of 10 ~ It's like a cat druid with arcane magic?
Good Kitty: 7 out of 10 ~ Great class to play if you want to annoy the DM/other players
Mortician: 8 out of 10 ~ Key factor keeping this from being overpowered is you AREN'T in control of the undead, giving the DM the option to cause all sorts of mayhem. When I cause mayhem I open the gates of chaos.
Don't believe me? Ask my wife about the D'Derian (Duderian).
Thundercat: 9 out of 10 ~ "Hooooooo!"