If you want to be a career military officer, artfully navigate large bureaucracies, go to high-level staff schools, and possibly reach flag rank then go AD. If you get to fly an airplane a little on the side, so much the better. But the problem with flying airplanes is that stuff happens in aviation, and the slightest blemish on your carefully crafted record will doom your otherwise illustrious career.

If you want to be a career pilot, go ANG or USAFR (or maybe Army NG/reserve) and fly airliners (or corporate) on the side. The AD is not what it used to be.