Cbennett,
Widger has hit the nail on the head with his post. Flying in each of the three services is a challenging but incredible experience and each one has a slightly different approach to it so it is worth finding out about all of them. I have loved my time with the FAA so far and would recommend it to anyone and I wouldn't change it for the world. The many and varied places that you will visit and the number of wierd and wonderful situations you will find yourself in the middle of will astound you. When deployed you are usually the only aviation asset in the area and many times the only aviator there full stop, you need to know your trade inside out and remain flexible. Having not travelled much before I joined the Navy I have been incredibly lucky to go on to visit somewhere in the region of 26 countries in the first two years I was front line and built my flying experience very quickly purely by being thrown in at the deep end with the robust support of the squadron back in the UK.
Good luck with what lies ahead!