1- I like mainly dark beats, semi-gothic if possible, extremely deep and low bass that just the best sound systems resist with no reverberation or without missing them. E.g:
The best example: a great sombre house tune of 2001: Slam feat. Tyrone 'Visionary' Palmer - Lifetimes (Original Mix)
Other great tunes:
Sucker DJ's - It's Gotta Be (Original Mix)
Wackside feat. Chic - Le Freak (Montilla Remix)
2- Moreover tribal beats (mainly dark tribal), and balearic sounds mixing caribbean rhythms with house.
3 - Plus every type of techno as long as it doesn't get monotonous and boring and not too fast.
4 - EBM (electronic body music or industrial dance).
In addition to all, I like a lil' progressive (just good one like Digweed's) and trance-ish sounds but just in very roomy places (and without lots of kids).
Can't stand much of vocal house and commonly played anthems that I've heard much (I use to end hating tunes like E Samba, At Night, or the Just A Little More Love).