SoCalDOc, I was kind of in a similar position as you, so I thought it might be useful if I shared with you what made me ultimately decide on RVU. I'm from the Chicago area and was accepted to both RVU and CCOM. As many people know CCOM is very well established, very well regarded, has excellent pass rates and residency matches. RVU, as we all know is a new school and thus brings with it all of the uncertainty that anything that is new has. But it also brings with it all of the positives that an established school doesn't have.
At RVU we won't be mired down in the tradition that already exists at a particular school; we as students will be forming the traditions in the way that we best see fit. The teachers will be extremely student focused, and, selfishly, only on us. There aren't any other schools yet at RVU so even our "basic" classes will only be med students. Also, the viability of the school is entirely dependent on our success, not only as a class, but as a group of very talented individuals. Thus, the teachers will certainly provide a challenging, but nurturing education that will allow us to, I believe, really flourish as medical students. The clinical sites are very diverse and since there aren't hundreds of other med students in those sites (like CCOM would have) we will be able to have a great deal of hands on training that will put us so far ahead of others when it ultimately comes to residencies. My parents are both doctors (my mom has 3rd and 4th year students from CCOM rotate with her and my dad teaches 3rd and 4th years from CMS) and they both advised me on the above and helped to contribute to my decision, so I believe that with their experience these points are pretty valid.
Other than that, there were a number of personal factors that led to my decision to go to RVU (among which I just felt I "fit" so much better at RVU), but ultimately I feel like I made the right choice. I honestly can't wait for med school to start and can't wait to meet all of the other people who are as excited as I am at the great potential of what I believe will be a great school!