Oh god that's hard. I went back and forth so many times. I think ULTIMATELY I ended up liking Travis/Lily, because at the time they felt very much like Tobias/Rachel from Animorphs to me. ALTHOUGH I LOVE RAY, and I always pull for the sort of geeky funny guy.
And that is hilarious. The show has some fantastic actors on it that'll pop up in guest spots, and I'll be like "OMG IT'S (that guy) FROM (that show)!!"