Good synth for dubstep/electro blines?

I'm 15 and have 8 years of piano experience, but I am a total rookie with DAW's. My plan is to have a DAW for sequencing and a good synth for custom sound creation. The problem is that there are way too many choices - there's a Moog, Blofeld, Novation Ultranova, Nord, etc. Which synth is the best for making those deep, wobbling, distorted screaming blines? To be more descriptive, what is powerful enough to imitate what artists like Skrillex do?