Not enough room to add Bug/Ground, which would've been also awesome, but I like these options so much that, whichever wins, it'll be good (although... Grass/Flying? Kind of random last minute addition, it seems). Bug/Dragon slightly lower but I'm sure enough people liking it will vote it up anyway.
I'm a casual Smogoner that mostly frequents the forums - chances are you won't find me on IRC that often. If you want to talk shoot me a PM please, I'm not on every day but I'll eventually reply.