<p>When I toured Carnegie Mellon, they made it seem like it was very difficult to double major, whereas at Tufts it was encouraged and seemed to be pretty much the norm for all the students and tourguides I met. That should be a major part of your consideration.</p>
<p>I don’t know much about UCB personally, but CMU and Tufts are both fantastic schools (both of which sadly rejected/waitlisted me this year…)</p>