S.J.
I had 2 of my children at St. Joes and was very happy with the experience both times. I did not use a midwife, so I can't comment on any of them specifically. The nurses at St. Joes were excellent, both during labor and delivery and post-partum.
I have a friend who is a doula in the area. She attends deliveries at both hospitals. Her impression has been that U of M tends to be more "cold and clinical" and St. Joes is a friendlier, warmer place to be for deliveries.