Which branch should I join?

Air Force. I was in the Army and in VN, guess who had the only air conditioned cubicle I ever saw? The AF guy :-) My daughter is in the AF, and though not a panacea, it is the best of the branches. You go where they send you (pretty much) in any of he branches. She just came off a great 4 year assignment, but is now in a suck-hole for the next several years. So it can happen in branch. They are your best chance for skills and experience that transfers to civilian life IMO. Good luck.