Watch out for apples and oranges, Research I Universities and LACs. Cal's graduate programs are indeed legendary, but Cal is not in the top ten of *any* field re undergraduates given in Weighted Baccalaureate Origins Study, Higher Education Data Sharing Consortium, considering the top 10 institutions ranked by percentage of graduates who go on to earn a Ph.D. In general, LACs do a better job producing future PhDs. The Ivy LACs actually make a few appearances in the top 10, but the list is dominated by non-Ivies.
http://server1.fandm.edu/departments...s/BacOrg98.pdf. Note that the data is ten years old. And yes, future PhD production is just one way to rate schools.