OK thanks guys. I don't know if I want to have a macro AND two other buttons when my intention was to make this complex system of skills a bit simpler, so I guess having just two buttons would be better than three. Definitely seems to be the most buttons for a tank of all the tank specs; SS, Revenge, Devastate, TC, SW, VR (IV), FR, IP, SB, Intercept, HL, and that's just the more regularly used ones, on top of the five defensive cooldowns and one offensive one, taunting, HT, and possible engineering toys.
Whoever said all classes got simpler in this expansion hasn't played a prot warrior, I'm thinking.