[dfxm12]

Good schools get enough applicants such that the top X are more or less indistinguishable from one another via quantifiable metrics. It's hard to define the 100 "best" when you're looking >100 kids with the same scores.

Harvard might not have this problem, but some, even some good, schools have to put some thought into if the student is actually going to accept the offer as well. Some states require a certain percent of students to be from the state in state funded schools.