4101297, go with your gut. You visited Michigan/Ann Arbor. You should visit Penn/Philadelphia. You want to go to the school where you feel more at home. Consider the athletic commitment (which program is better suited for you, which coach do you prefer working with, which program has teammates that you like better, etc…).
Academically, Michigan is extremely strong in your chosen field, but Penn is not far behind.
http://foreignpolicy.com/2015/02/03/top-twenty-five-schools-international-relations/
Like Penn, Michigan also has excellent individualized programs, including a PPE major, and the Business school now offers a minor.
https://michiganross.umich.edu/programs/minor-in-business/curriculum
I would not listen to the noise on CC. You want to explore the academic and athletic opportunities at Penn and at Michigan, and then go with your gut.