I'm afraid it might just be Jill Stein I vote for again (yeah, I didn't vote for Obama in the last one... a protest against the renewal of the entire Patriot Act, if you must know) if it's between Clinton and Bush (or Clinton and ANY Republican likely to run, really). I think Stein is a little TOO far out in left field, but I don't think I'd vote for Hillary. Strangely, I would vote for her husband if he were allowed to run again though. That may seem strange to some people, but Hillary always sort of rubbed me the wrong way, and I don't consider the marital association to be an indication of being somehow as good at president-ing. I just have an unexplained dislike for her, I guess... and it's not that she's a woman (no hint of a similar problem with Warren, for instance).
Being from Kansas, it isn't very likely to matter who I vote for anyway... the electoral votes will automatically be Republican whether I like it or not, so don't blame me for Bush Jr. (not that I didn't vote for Gore anyway) when Nader also ran, and the Supreme Court found a bad excuse to anoint a president before the recount process was even finished.
I also consider Hillary as someone more likely to get us into another useless and expensive war than some others on the left... the right is already clamoring for one, and I just don't see her resisting the push as well as some others would. She did vote for the Iraq war.