that's personal preference, perhaps influenced by the loudness element. Skrillex compresses his music to shit, which I personally hate, and has completely lost the tripped out reggae element which formed the "dub" part of dubstep. The Skream track is a lot more laid back and trancey, which I prefer. If you like Skrillex, you have to remember he began as a dumb emo metal kid, if you haven't tried metal I suggest you give it a try, especially the more modern stuff. You might like it.