Which of the US armed services is best?

The US Rangers. Make black ops look like pussys

I'd say I'd go for the army, because I can't imagine myself truly "surviving" in any of the other sections.

The domain of skills covered is large enough for almost anyone to fit in, and you're in for life unless you decide to quit along the way.

So yeah, army.

Depending on your financial situations there are plenty of programs that allow you to attend a community college for virtually no cost, in some cases you would actually get paid to do so. Once your enrolled you can try applying to the Air Force Academy, it's no easy task but once your in the schooling is top notch and the Air Force will pay for further education in your preferred specialized field. Even if you are called to serve oversees they do not put people with college degrees especially from the Air Force Academy on the front lines, odds are you would be doing a support role in non-combat based manner.