First of all, congratulations on getting into some great schools. If choosing from that list, I would just follow the money. If you get a full ride at UM, that, to me, would be the no-brainer. The previous poster clearly has no idea of the national marketability of a Ross MBA. On a separate note, I absolutely love the campus of UNC Chapel Hill and the general feel of Keenan Flagler - so if quality of life/experience is meaningful to you, I definitely think you have a great option there. UNC, Duke, and UVA are all relatively more attractive if you have any desire to work in the South later. Honestly, though, all are great options.
I say go for the MBA, particularly if you plan to stay in the workforce for a while. Aside from the career springboard that a top MBA can be (don't let anyone else tell you otherwise), it is just a great experience. Great people. Great education. Great recreation. Great personal development. And, if you have any entrepreneurial aspirations at all, I would absolutely encourage it. A number of my classmates from b-school literally made tens of millions of dollars (in at least one case, hundreds) within just a few years of school by starting their own businesses. B-school gives you the time, perspective, and network needed to launch something awesome. Sometimes it just doesn't make sense to wait until FIRE to start working on your own terms.
I would caution you against focusing on the starting salaries coming out of school. They can really be all over the place, and management consulting, IB, and IM spots are extremely competitive...and highly dependent upon the economic climate at the time you are graduating. I know a number of people who settled for $75k jobs just to get their foot in the door somewhere. Those were exceptions, but just know that nothing is guaranteed. It is ultimately up to you to make the most of the opportunity and to hit the ground running with an aggressive recruiting effort (it will literally take 1/3 of your time starting day one).