I applied to both, got interviews to both, went on my ATSU-SOMA interview first and decided to drop my AZCOM interview after I got accepted because I fell in love with the school on my interview. Yes, campus isn't a bunch of old buildings all spread out on campus. Rather there are just a few large very modern buildings stocked up with all sorts of really cool technology (like sim people). I saw the CHCs as a huge plus since you get to start clinicals an entire year before other schools. I also really liked the systems based approach as compared to the traditional class system at both midwesterns (I applied to ccom too).
I would apply to both. Your stats aren't bad, but word has it that this year ATSU has gotten quite a bit more competitive than it was before. I had a 3.85 cgpa and a 3.75 sgpa, 26 mcat, and a lot of ECs, a lot of volunteering for non-profits, I'm a CNA, i have clinical experience, etc and I got accepted 3 days after my interview...but I talked to others who had pretty good stats and were rejected. Apply to both EARLY. I think that is key 🙂
In the long run they are both good schools. Your chances of getting a good residency won't be hampered either way, it is up to how much work you put into your education/how well you do on boards, etc.
If you apply to both, go interview to the ones you are invited to. ATSU was actually my last choice until I learned more about their program at my interview. I am so glad that I gave it a shot..otherwise I would have no idea what I'll be missing (in just a month!!).
Good luck!