White Court vamp, obviously. Look at Thomas. Thomas kicks ass. Thomas can hamstring an uber-ghoul with one hand (with a kukri, no less, on of the coolest knives ever), fight off a dozen normal ghouls with a big stick. Supernatural senses, strength, speed, endurance, healing, and looks. And his only weakness is he needs alot of ... ahem.. action. Oh, and true love. Which sadly, isn't too prevalent. I don't really see a downside to this guy.