Pay close attention to VentDependant's list of rotations. Notice how many away rotations he took. Yes, AZCOM is great because you have this flexability. AZCOM sucks because you need this flexability to ensure quality clinical rotations. I personally stayed in Phoenix for most rotations due to family obligations, and even though I was very proactive in trying to select quality preceptors, my experiences ranged from excellent to truly awful. For every rotation where I felt lucky to be in a preceptor based rotation "catching babies and doing tons of central lines," there were 2 rotations where I was a glorified medical assistant, stood in the corner, or ran with my preceptor from patient to patient with no teaching. Realize that AZCOM preceptors are not paid to teach, do not even get A1 CME, and that they have to make a living. Students are a liability to them, even if they really enjoy having us around. Most days, I felt fortunate for 5-10 minutes here and there of actual teaching. Compare this with a teaching hospital setting, where you may be 4 rows back, but you've got 2-3 hours/day of solid teaching. The clinical experiences will come to all, eventually. How many of you would want a 3rd year MS doing a central line on you anyway?
As for the hospital based rotations in Phoenix. Currently as a 3rd year, you cannot rotate at ANY of the teaching hospitals in phoenix, period. As a 4th year, you can do a maximum of 2 months at each of the teaching hospitals provided they have room for you after their affliated medical schools submit requests for their students. Some of these hospitals have pre-requisites for their 4th year rotations such as 2 previous months of inpatient medicine, inpatient Peds or OB, etc, and these pre-requisites are impossible to comply with as a AZCOM student staying in Phoenix for your 3rd year, so as a 4th year you are still shut out of many inpatient opportunities in Phoenix. Realize that in this town, the Univ of AZ would love AZCOM to vanish from the earth and the local teaching hospitals are completly ambivelant about us as AZCOM pays them nothing to train us.
Things will get worse, I think, with the new medical school coming to Phoenix. There will not be a new teaching hospital built with the school, but rather the new MD students will utilize the existing teaching hospitals. What this means is less room/fewer unused inpatient rotation slots available for AZCOM students. I've talked with PDs and attendings at the VA, Maricopa, and St. Joes and they all say AZCOM currently begs for scraps when it comes to 4th year clerkships, and the scraps are going to get leaner when the new school comes.
Good luck with your decision.