ACPP locations are Washington (Manassas), Atlanta, Jacksonville, Stuart, Dallas, Phoenix, Riverside, and Sacramento.
I think the question of which ATP location is better appears every few months; try searching for past posts. I asked this same question before I went too. Jax is extremely busy, partially due to the many programs offered here. That has both good and bad implications-it can be difficult to find a quiet place to study or teach a lesson. On the other hand, I really liked the program in Stuart-the office isn't that busy so there are always planes and instructors available, and everyone is not stressed out. Throw in the lack of traffic, friendly control tower, awesome apartments, beach and things to do, and it's hard to beat.