WUStL, Duke, Harvard, Columbia, Hopkins, Penn, Cornell, U.Mich, Mayo, Yale
its all based on GPA, MCATs, and acceptance rate... i wouldn't put too much stock in it....
where did you get the "selectivity rating"? on US News, i see the rankings by percent admitted (lowest to highest) as: Mayo, Stanford, Duke, Cornell, UCLA, UCSF, BU, Tulate, UCD, Harvard