If you haven't already done so, I would read over this thread:
http://www.airlinepilotforums.com/fl...mind-also.html
A lot of the questions you have asked can be answered in there.
A wise man once told me "never go to school/institution with the word academy in thier name." I know people that have gone through academies and the tradtional fbo route and really it is what you make of it but be prepared to pay a lot more for the academy route and don't give in to the hype about them being the fast track to an RJ.
I'm not sure what you mean about "sub par, smaller airport" - please expand. American Winds seems like a decent school, but a little too structured for my taste, but thats just personal opinion. Find what works for you. Their rental rates seem fair for a large flight school as does their ground instruction.
I also would advise against switching degrees, this is going to add to the amount time your in school and an aviation degree will not allow you to switch careers as easily should the need arise.