My favorites, in order:
Bad Cats, lots of timed shots going on, great non multi-ball play, beautiful machine, mechanical backglass, roulette wheel, drop targets, 20 million point ramp shot
Diner, Great art, great theme, great shots, mechanical backglass, drop targets
F-14, Fast, great light show, great multiball play, overall very pretty machine
BK2K, fast, probably one of the prettiest machines made. Awesome sound
EATPM, Elvira...need I say more?
Pool Sharks, the ability to play 2 different games on 1 machine, nice long ramp shots, fun non multi-ball play, drop targets
Taxi, fast, great flow, great theme,
Riverboat gambler, simple, yet still a lot to shoot for. Beautiful cabinet/translite artwork.
Didn't care much at all for SOF.
Fire is OK, just didn't like the flow all that much.
Can't really rate Space Station just yet. Even though I own it, I haven't played it yet. It's folded up and in storage till I have space/time to shop it.