I struggled with this same decision last year. When I started the application, I was 100 USAFA, but USNA kept sending me stuff about NASS. I finally just decided to apply, and I got into NASS, but not USAFASS. When I left NASS, I was Navy 100% for all of the reaons listed above. They pushed us hard, and I had bruises in places I didn't know you could get bruises in. I was sore for the next week after going through Sea Trials. With that being said, I am now a C4C at USAFA. I went through and tried to list the pros and cons of both academies, as well as the life after th academies. For me, what decided it was this: what is the one fun thing you get to do during BCT/Plebe Summer? This is the academies way of showing off some of their programs, and it is the first thing you get to do pertaining to the service, and not just the beatings of BCT/ Plebe Summer. At USAFA, you get to fly a glider and spend a day at the airfield. At USNA, you get to go out on sail boats and go around the bay for a while. While flying is my ultimate goal, and both have that as an option, it is what the Air Force does, not what the Navy focuses on.
There are subtle differences between the academies and how they are run. With that being said, it is not the academy that is the end goal. It is the commission and the service to our country. If I had a promised cross-commission, I would have probably gone to USNA and crossed over to USAFA, simply because I loved the USNA campus so much. This place has grown on me for sure, but USNA is just simply amazing and nobody can take that away from it. With all of this being said, just remember, it is the end service, not the Academy that the decision should be based on because the Academy is simply a 4 year stop in the greater adventure.