Rank these cats for 9 Lives!

CatRanking

You've heard me talk about my card game 9 Lives a bit already. Well, I've been fortunate enough with Koi Pond's success on DriveThruCards to have enough in my budget to order art from an actual professional rather than doing it myself. Above you can see the nine cats drawn by Kristina Stipetic, each with its own personality. Now I just need to decide, how will they be ranked?

The game's cat theme is fairly loose to begin with, so the numbers 1 through 9 don't really mean much mechanically. Though I suppose you could look at the math and say that 1s will be least likely to come into play while 9s are most likely. Note that it is not a measure of actual rarity in the deck, just how useful they are in play.

All things being equal, I figured I'd open it up to the public. So, now taking your recommendations for how to rank the cats above from 1 through 9. Feel free to use whatever logic you wish. Age? Mood? Energy level? Take your pick!
Daniel Solis
Art Director by Day. Game Designer by Night.