I still think the JLU Hal is the best (and thank you, Spy, for the painted head). The YJ Hal will end up being customized into an alien. And the GL: TAS Hal isn't bad. It's a mini-JLU figure with a pivot waist and rotating shoulder joints. He might make a good JLU teen body (as An-Gel suggested) but I have too many customs on my To Do list before that.
And check out my Awkward Moments in the JLU thread for a similar shot with commentary from the Hals, Kyle, John and a Guardian