Stanford can recruit nationally because it's a private school. Are the academics really that much different at Cal vs Stanford? Doubtful. Their brand can recruit nationally, much like a Northwestern or Vandy or Duke or ND, but even moreso.
From buddies that have gone to both, it's harder to get into Stanford, but much easier to graduate and graduate with a high GPA there. Cal grads are happy if they graduate with a 3.0 average. It can be brutal there.
Oh Jesus Christ.