I think rush will do very well. They are certainly hard to meta against (I agree that Targ is probably the best, but I don't think we will see a ton of them), and in the right hands they are very solid against many of the stronger deck-types.
They got 4th last year out of nowhere, and they always seem to have one deck that goes pretty far (maybe 2008 being the exception - I know in 2006 the only undefeated after Swiss was Bara).