This guy clearly doesn't have a clue as to what makes a great business school.  The most important factors are the quality of students, the alumni, and the jobs available to each.

The students are tops at Stanford hands down.  Dual admitted students tend to split evenly between the two schools, but because of the small class size these cream of the crop admits make up a much larger proportion of the Stanford class than the HBS class (~25% vs. 10%).  Additionally, there is considerable self-selection in the Stanford applicant pool given the far heavier admissions standards.

The alumni quality...