XI from Toronto, Canada is doing it for me right now. He has a lot of versatility - while he is capable of and has made typical formulaic-styled club bangers (his tune 'Sunshower' would bring FWD down if it got rinsed there), on the other side he is producing a lot of really interesting rhythmic shit that I rate very highly. He's coming into dubstep production with some very different influences from other producers.
'Turn It Up!' and 'Stop Push' are two of my favourite dubstep productions at the moment. Walsh has cut both to dubplate, and Joe Nice should be following suit sometime soon. Youngsta is becoming a fan recently as well, and Skream has already played his track Ronin Dub on his Rinse show.
Hopefully you'll all be hearing about him more soon, some of the harder dubstep heads might have already heard his collaboration track with Matt Carl, DZ and Bowzer 'Mathematics'. Joe Nice has got the excloos on it, had a very warm reception at the last DMZ.
http://www.myspace.com/xidubkilla