DPS class with the fewest buttons?

[Ephier]

I'd say MCH. They have a lot of abilities with shared cool downs; some of which are very situational to the point you won't need them in most cases like Stun or bind

I laughed a little a this. MCH don't have a lot of buttons, you funny. Ignoring the 2 CC only skills (which you should be using anyways for cutting animations) I am using a good 30 or so of those buttons on my bar. Not only that, MCH has some REALLY low cool downs.