My faves are mainly dance music, harkening from the "good ol' days" (New Order, more synthpop i suppose) to the newer stuff (crystal method, underworld etc). Also diversify, occasionally listening to music like White Zombie, Massive Attack and Fun Lovin' Criminals. Not too keen on 'pop' and female solo vocalists
Jazz, fusion jazz, metal, anything featuring lots of guitars or an orchestral, heavily reverbed sound... drum n' bass, well, anything really, as long as it sounds cool and original. I just like music that I think is good, that's all I can really say. It's not good to limit yourself to just listening to one thing. As far as artists: Moby (of course), the old Metallica, Godsmack, Gorillaz (a recent favorite, you really should give the album a listen, all the other stuff is much better than "Clint Eastwood"), and changing pace... Preston Reed, George Winston, Miles Davis, Stan Getz, John Coltrane, and um... Deee-lite.
EDIT: Oops, I also like all sorts of video game music, and as far as I'm concerned, Yuzo Koshiro is god! (note: I can not guarantee that Yuzo Koshiro is in fact God)
Stabbing Westward, My Ruin, Tura Satana, Rammstein, Insane Clown Posse, anything written or produced by Jim Steinman (Meatloaf, Bonnie Tyler, Pandora's Box), Voltaire, Poe, Leftfield, Graeme Revell film scores (The Crow, The Craft), Offspring, Trans-Siberian Orchestra, White / Rob Zombie, new Vanilla Ice, KMFDM, Danzig, Green Day, The Cure, Fiona Apple, Eminem, Lords of Acid, Big Bad Voodoo Daddy, lots of local punk and industrial bands, the list is endless...
Punk, Psychobilly, Rockabilly, Hillbilly, Old School Gangsta Rap (NWA etc), some New Age, some Alt Rock, some Country (like Johnny Cash or Roger Miller - not "young" or "new" Country), some Metal, and basically anything that's kinda sorta dope/sick/cool and not Pop.