I'm leaning more and more toward playing demon hunter tank.
I haven't actually played monk tank that much, but from what I've seen it just seems VERY far from what monk tanks are now (which I enjoy playing!) while demon hunter kinda plays like monk plays now.
I haven't really made up my mind tho and should probably try some more stuff out on beta before I make my final decision.
I hope they make the beta "open beta" soon so we can all try shit together!