<p>I saw Wolfe's book as mostly Penn with some aspects of Duke mixed in. This is an article from a former Duke professor on the topic. </p>
<p><a href="http://www.duke.edu/%7Estuart/tomwolfe.html%5B/url%5D">http://www.duke.edu/~stuart/tomwolfe.html</a></p>
<p>To answer your question, U Chicago, Yale, MIT, and Caltech sound like the best choices.</p>