I'm into techstep, hard breaks, dark leads... I used to be big into darkside amen rinse-outs but techitch and the like sort of killed it.
The sounds I really dig are sharp, clippy, dark and fast drums, twisted insane lead synth stabs, and in your face, dark, energetic soundscapes. Good rythem, pace, and continuity are always key, as well as a lot of energy. I hate dead sounding drum and bass.
Uh... and I produce dnb too. I'm getting a few tunes together and hopefully will post them up here for you guys to check. I'm always up for colaberations 'n shit.
So that's about it.