I was considering this a few months ago. Here is some of the things I came up with.
Pro-s for USC:
Living in LA. There is so much to do here and the weather is great all the time. Your from here, so I won't go into it to much.
County Hospital. You'll get the best clinical experience than any place in the US.
Old boys network. Generally there are a ton of USC graduates who help out other USC graduates. Being that you went to undergrad at SC, it prolly wouldn't mean to much to you.
Matchlist is 80% california. Most people go away to medical school hoping to be able to do well enough to get a residency back in california. If you go to USC and do decent, you are almost guaranteed a decent spot in cali.
Environment at the school. I really loved the fact that the students all had an individual desk with an ethernet connection right there. I don't think any of the other schools I went to offered their students there own personal space on campus.
Pass/fail. USC grades you on a real pass/fail (not like other schools which still have class rankings even though it is P/F). The only time you are actually graded is at two year end tests and for special projects (I'm not sure what that is. It might be research or maybe PBL type stuff)
Clinical rotations where you want to be: My friend who is a residaency director tells me that they favor people who they know because they did a rotation in their hospital. At USC, you would be able to do rotations all over LA wiht the same people who will be interviewing you for residency a year later. THIS HELPS A TON.
Con's for USC:
Cost. But that dec is almost null V michigan.
Teaching: The teachign isn't as great as it is at other schools. If your the type of person who learns best while sitting in lecture listening to people talk, than you might be better of learning at a diff school.
Pro's for michigan:
Teaching: Great teaching. Much better than USC.
Reputation. Most people know that people who come from Michigan make great doctors.
Ann Arbor: Very nice and safe community. A bit to small for my tastes.
It's connecteed to the undergrad. I really like that about UCLA, in that medical students have all of the perks of being on a college campus such as a free gym and good libraries.
Connections.
Most Michigan grads go all over once they graduate, so you're more likely to get a hookup in New York coming from Michigan than if you went to USC.
Con's for michigan:
Weather. It's terrible. It could be that you will study more up there because of this, but I wouldn't be able to stand not going outside for 4 months a year.
Student enjoyment. I really got a bad feeling from the students who were there. It seemed like they were just there because it is a top ten school. There was a thread about that about 3 months ago.
Clinical training. Ann Arbor is really isolated, with not much of a patient base. I feel this really takes away from the learning you can do in the hospital, unless you go out to detriot to get some training.
Conclusion:
If you feel that you can study for the boards on your own and do well, then USC has a ton going for it. I feel that someone with a 230 on the boards from USC vs 230 on the boards from michigan (and similar clinical evals), more people would choose the SC person because he has done more in clinical and is more likely to be better trained.
If you need the lecture, and you want to go into a certain specialty that is hard to get into, but you don't care where you are going for residency, you should go to michigan. I feel if your looking to do ENT or something like that, the residency directors would look more favorable on reputation of the school in these cases because they prolly have had mich students in their program before.
hope that helps.