Penn (CAS) vs Imperial for Physics?

<p>I've been lucky enough to get an offer for Physics with Theoretical Physics from Imperial College London and accepted for Penn (CAS). I don't know what i want to do for a future career but i know i definitely want to work in either Australia or the Far East (not India, Middle East etc.)</p>

<p>I've visited both universities and like/dislike things about both and can see myself enjoying both places. Which university would you say is better for Physics?</p>

<p>Penn has a wonderful physics department, the faculty is really outstanding and there are a lot of research opportunities for undergrads.</p>