For Monk my sole focus would be on providing a system where each of 3 stances has a lot of choices, and it's non-trivial to decide at each step which one you'll want to be using ahead of time. In fact, I think I'd drop most of the remaining job in favor of let's say, 6 choices per stance, so 18 GCD buttons and only buff + healing + gapcloser on top of that, no more.