<p>I’m not an expert on Oxford by any means, but my understanding is that Oxford and other European universities do not provide the same kind of undergraduate experience (in terms of breadth and variety of curriculum, campus life, activities, etc.) traditionally associated with American colleges and universities. This may not be relevant to your decision, but if it might be, you should investigate it further (perhaps others with more detailed knowledge of this will chime in here). You might also want to consider going to Penn for undergrad–to get a more traditional American undergrad experience–and pursuing a term or year abroad at Oxford while at Penn, and/or going to Oxford for graduate school. Just a thought.</p>