Congrats!!!! USAFA is reachable with a long drive from TX. And the two in the East Coast could be visited in one trip, although requires some planning and coordinating. The bottom line is that there really is not a wrong choice for him.
Congratulations! Your lift will also be changed forever, assuming SA will be his choice eventually.
My DS is in the waiting category. USNA is the only SA he applied. His plan B is NROTC.