Skrillex doesn't count. He's dubstep anyways, not electronica. Dubstep don't deserve to be called that, lol. Deadmau5 can count, but that's a pretty generic answer...
My favorite artist is Renard Queenston, of LapFox Trax. He makes over 10 different genres of electronica ranging from death grubble (yes, that's what it's called. it's like uberhardcore.) to chiptunes and speedcore. Everything! He covers it all. I love his classic electronica. What about you guys? Ever heard of him? If not, like I asked earlier, who's your favorite artist?