Personally, I think hunters are super badass. I like the warlock (especially voidwalker, with the cool force melee and nova bombs), it looks and feels kinda like star wars, or space harry potter. But hunters are the most fun to play (for me), with them being really fast, having blink and double jump, and being able to stab people (you feel like an assassin). Plus, they look pretty sick too. Your choice dude, but I think that hunters are more useful. Looks and playstyle are up to you, but hunter just seems more effective.