1) Family considerations (if you need to take care of anyone or things at home that you need to be close by for)
2) COST OF ATTENDANCE (HOLY MOLY this cannot be overlooked)
3) Reputation (all US med schools are pretty similar for preclinical years, but the reputation of the school does play a role in residency. I've asked a residency director at a cali program how programs felt about my current med school. Answer: not that great. It's true there are far more significant matters in a bid for residency placement. However, don't be fooled by people telling you students from bottom tier med schools still get into UCSF, Harvard, Columbia, Yale residencies. There are a few that do, but they are almost always in primary care specialties. If you know for sure primary care is where you want to go, then this doesn't matter much. But if you're considering a more competitive specialty, give some thought into the reputation of the school.
In my opinion, school curriculum is really not something you can base your selection on especially since you really have no clue how you're actually going to do at any particular school. Plus, you can read all about things like problem-based learning and still be horribly or pleasantly surprised the day you actually partake in it.