I have heard nothing but good things about Grand Rapids and Kalamazoo. If you are interested in high powered academics and research, those probably aren't the place for you. Wayne State and Henry Ford both have sports fellowships. Henry Ford is the team docs for the Wings, Lions, and Tigers, so you may get to work on some high profile athletes when you are there. They are both in Detroit, so they are very trauma heavy. I don't know anything about flint or U of M, but U of M seems to be great in just about everything and I am sure they work on their own athletes. I don't know much about Beaumont either.
Life in an ortho residency is very demanding. Most residents work well over 80 hours a week, but there are new regulations going in to effect next year to limit that. Only time will tell what kind of effect it has.
By the way, I wouldn't limit yourself to Ortho, or medicine, for that matter if you are early in your undergrad career. You have years to figure this stuff out and will likely change your ming several times. I have bounced from physical therapist, to ortho, to geriatrics, to cardiology, to emergency medicine, and finally back to ortho.
Good luck.