Congratulations on all the admits! And while I don't have enough expertise in these schools, here's what I suggest you to take a hard look at.
Since you'll be spending a whole lot of your money (+opportunity cost), really look at what each school can offer you. As a starter, the summer internship from Cincinnati sounds great because that's guaranteed income for you for 2 or 3 months. This may not sound like much but it's much greater than a dollar amount. Typically, you can leverage the summer internship experience to garner a full-tim offer in the beginning of your second year. Furthermore, this will make it easier when it comes to recruiting during your first year because you know you already have a back-up. So definitely don't take this offer from Cincinnati lightly. However, would you happen to know what that internship may be? Is that internship something you're looking to gear up for a full-time career post-MBA? If not, you really want to look at the the other two schools and see what those offer you in terms of job potential and placement. Also consider all of these schools' regional reputation. I have to assume that these three are known more regionally, and thus, will attract a group of smaller, regional companies. If that's the case, where do you want to work at post-MBA? Do you want to be on the mid-west or in NY? If your goal is to live and work in NY, give some extra points to Clarkson (I think it's in NY) because you will live and breathe NY air and recruit directly for smaller companies in NY. So while no one can give you a definitive answer, try thinking about it in these perspectives.
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