I can't believe people are honestly suggesting you choose MCW without even visiting SLU! C'mon people, its great if you love MCW and want to have its baby and hate/dislike SLU, but OP has never visited SLU. Choosing a med school is a completely subjective thing. I know there are schools that I interviewed at that other people absolutely love that didn't impress me at all, and I'm sure there are schools I loved that others disliked. The only way the OP can know for his/herself is to go visit. For all we know, for this particular person after visiting SLU there might not even be a question of where he/she wants to go, whether its SLU or not doesn't matter to me.
OP, go visit SLU. If you still can't decide, then let us know. Until then, you can't decide if a school is the right fit based on a regional interview and some pamphlet of information they give you.