I am going to go out on a limb here and say Chris Kovarik. Failing that, any aussie.
My realistic vote is Minaar or Blenki.
But then again, MR Hill could be up there as at the nationals he didnt seem to be going full pace, and he stalled in the gate for a few seconds (so I have heard), so he might have something up his sleve (sp).
Final verdict : I suspect it will be relatively close, but I will go with Kovarik for pure awesome. (also, my skill level might increase just thinking/talking about him winning!!!)