I also wouldn't mind going out by a noose, although I would prefer a neck snap. Or, noose on restricting my breathing a lot, and then as I can't stand it anymore, blow my brains out.
I would want a bullet to the brain, simple, classic. Through the brainstem would be best, literally instant death. Either at the hands of another, like an execution, or self-inflicted when I am wicked old and lived a good life.