Some pointers

Whether you're going for intense wubs or a big fat disgusting wobble, the synth needs to sound less like it was made with acid, it sounds like a low-quality sound but can't quite put my finger on it. With a better main synth, and a bassline that mirrors it, you'd have a disgusting wobble. Then to work on the melody of it, would make it fantastic. As for the drumstep aspect, I can see how you worked on it. You've got the whole drumstep beat sussed, you just need to make it louder, as the beat in drumstep is often more important than the synths. Real potential here, keep it up

Dubstep?

Not what i think of when i hear the word "dubstep" but then again this is wayyy better than i could ever do, so who am i to judge? Epic song, man. love it!