Well if you had asked me before EA, I would have said without a doubt that my first playthrough would be a chaotic/neutral good tiefling warlock (Fey patron pact of the blade) as well, but honestly I think there's a decent chance I go with a neutral good seladrine drow ranger. I played that (tried and failed to go evil) early on in EA so that I wouldn't burn myself out on warlock come full release and I really enjoyed it.