What are the most DIFFICULT schools?

<p>of course every student has his/her own academic goal, and some are more hardcore or competitive than others. </p>

<p>but i’m wondering if the school itself (i.e. the professor’s grading, expectations, workload, etc.) is difficult. are harvard, princeton, and stanford difficult? certainly, a lot of the other colleges on your list are known to be difficult. but are the few with grade inflation difficult as well?</p>