Gargs, all the way!!
There are definitely nasty gargs out there that will bite and hiss, but it all has to do with handling. After even a week without handling, mine will get a bit nervous (but never aggressive). Normally she is a sweetheart and VERY fun to hang out with!
Cresties are really cute too, but imo you can't beat gargoyles! They're so exotic looking, not to mention fairly tolerant when it comes to heat/humidity variations (from what I've heard, moreso than cresties).