Attractive by whose standards? It's obvious these surveys are a reflection of mainstream American standards of beauty. And Detroit being primarily African American doesn't help that perception.

Although I agree obesity rates are higher here I would say that there are plenty of attractive women in the region. Compared to the other cities at the top of least attractive, most of which I have traveled, there is more of an emphasis on fashion, hair, makeup, etc.

Beauty is in the eye of the beholder though..