To be completely honest,
I thought you had this remix contest in the bag. Your mix was the most professional sounding, and it got front-paged. Not to mention it sounds fucking incredible in the headphones.
The only thing I don't really like about it is the style - and I kind of have this prejudice about dubstep in general (dubstep, drumstep, what have you). It doesn't really go anywhere up until where the robot noises come in (sounds like a robot saying "yaaaaa yayayy yayayayayaya"). There are a lot of moving parts in the sense that they're being panned all over the place, but other than that most of the parts are really repetitive and basic. Whenever I remix something, I like to complicate it with many moving parts and harmonize with the melody (many of the same tendencies that I have as a bassist). I feel like most dubstep in general ends up leaning towards a sound that is stagnant but catchy - a sound that I find very unmusical. To put it simply, I just think you could have done more with it.
The level of professionalism in this track, however, is unmatched. The drums sound brilliant, and I love what you've done with the reverb. Seriously, I would love to have drum samples that sounded that good. You should let me know what you're using - it might give me something to put some of that contest money towards ;]