The big problem with the Libertarian party is that in terms of corporate control, it's like the Republican Party x10. Libertarian philosophy presupposes that private enterprise will step up to fulfill the roles vacated by the government....maintaining the roads, police force, social welfare-type systems, firemen, schools, even, to a degree, the courts. Do you want your house to burn to the ground because you didn't engage in a firefighter contract? Do you want a corporation to arrest, try, imprison, and possibly even execute you for damaging their interests? Hell, no.
I don't like ex-military presidents because, frankly, the military fucks your mind up....it's SUPPOSED to. That's what boot camp and super-discipline and all that is for: to get you to think in a certain way, a way in which following orders without resorting to questioning your conscience is paramount.
Kerry's the worst kind of anti-war person, from what I know of him. He's all about war, but not SPECIFIC wars. He signed up for the military, "but not Vietnam! that war is unjust!". He doesn't really have a problem with wholesale killing, but he doesn't like when that killing doesn't align with his particular politics. "Worst kind of anti-war person" is better than the best kind of war person, I suppose, but that's the best I can say about him.