I have to go with:
KOAN Sound for amazing sound design and melodies.
Ramesses B for that positive melodic overloads on each track.
Madeon for how skilled this guy is. Still almost a kid. Unbelievable.
Deadmau5 for how huge he managed to get.
London Elektricity for showing that age is f***ing irrelevant.
Etherwood managing to get that precisely beautful combination of dnb and piano pieces.
Andrew Bayer for his glitched chopped and sliced extremely cool and I bet tough as hell style of production.
...and all the major guys active on this forum like both Matts and TeeBee for how close they don't mind to get to their fans.

(aside from amazing music they all make)