In the ANG or AF Reserves, you will have to have, at least, a Private Pilot license. In fact, you'll need it for active duty.

Any of those routes will work, the details are your situation. If you need college money, enlist, take the ANG's tuition assistance. Realize that chances are your Guard commitment could interfere with completing college in four years. We had a number of enlisted crew who lost a semester or two after the activations of 9/11. Enlisting or minimally, "rushing" a unit as a sophomore gives you the best chances at getting picked up. You have a maximum age to enter UPT, so the more years you are seeking a very competitive position, the better the odds. I was introduced by a guy I did some flying with, he encouraged me and got me thru the hoops. I was an out of stater and not enlisted, but it worked. As I said elsewhere, guys and gals get Reserve UPT slots by many routes.

GF