Philosophy majors perform very well on tests such as the GRE, GMAT, and LSAT, and fare better than other majors when applying to medical school as well.
LSAT Data 2007-2008:
LSAT and Admission Data 1997-1998:
From the APA newsletter, “Philosophy Student Performance on the Law School Admissions Test (LSAT)”
1998 Statistics from the Association of American Medical Colleges