I'd guess that the more prestegious the school, the more the personal statement counts. Otherwise, the 25% LSAT at Columbia wouldn't be 166...there have got to be enough high scores out there for the top-5 to fill up with 170+...or maybe the test really was just that hard. also, those schools don't have nearly enough minorities to skew the #'s that much just on "affirmative action" (as the PR'ednecks like to say)