I'm in the Air Force, and I chose Guard over active and reserve for the educational benefits. If you are looking for something that you are doing your job all week, and you want to be away from home, then you want Active. You might want to check with your state guard bureau, because most states give you 100% tuition ( not reimbursement, they straight out pay your tuition to state schools) I know that if you want intel, you WILL be at Goodfellow AFB, TX. However, intel is a desk job, almost 99% of time. If you want something fulfilling, look into being a PJ in the Air Force, they have the hardest school, but you are practically a hero when you graduate. Combat Controller is another career that is fulfilling, as you are the ground force that designates the targets with lasers for the pilots to bomb the hell out of them.