im going to recommend mainly electronic, because that's what i like

Kahn (UK bass/dubstep artist) - check out his Fact Magazine mix, one of my favourite mixes ever.
Objekt (German techno/bass artist)
EPROM (Sanfran bass/rap artist)
Tyler The Creator (rapper from Odd Future, wierd, kookie sort of stuff)
Niyaz, and Vas (Californian classically trained duo, singer with Persian/Indian background....surreal early music/folk style stuff, while Niyaz is the same with an electronic production tinge)
Tzolk'in (insane industrial, dark ambient, trancey sort of stuff, seriously beyond description) Their releases on Ant Zen are phenomenal. Anyone who's a fan of percussion rituals, should def check it out...incredible influences from Mayan history too!
Balkansky (check out an album callled Kuker, Bulgarian drum and bass/dubstep artist) that album in particular is really greatly produced, almost "hifi electronic music" if there is such a thing, it's so well engineered, deserves a mention, it even won an award in his country for the engineering....as small as the competition might be...def deserves it!
Sphongle (duo consisting of 2 wizards, one young, one oldish, LSD advocates...massive on the psytrance circuit....write an awesome combo of psychadelic dub, with a heavy world tinge....some of the sickest electronic engineering you'll probably hear, flawless)
too early cant think of more!