Alt+F4 or Power-Button on your Rig.
Macro for PvP ... you know that you are playing against real players, and not against AI (lmao, sure, there are bots now, just look how they are fighting, yet stuipidly semi-macro), so using XYZ macro in situation A to Z is just plain stupid. You have to deal with the situation yourself, not your macro. Git gut, dood.