Perhaps if you give a little more background info people would be better able to offer advice. Your question sounds like you like USC more than ND, so one might think the answer is to go to USC. I’m guessing it’s not that simple. Is there more to the story? Do you like them equally and are torn between the two (and need convincing on either end)? Is financial aid more at one school than the other? Is weather/distance/campus an issue?