I personally hate these rankings. My DH teaches at one of these "best of the best" schools and in my opinion the school is highly dysfunctional.
There is a pervasive attitude that the kids have to be perfect. They have to take a full schedule of all AP courses, which leaves them little to no room to explore other interests, electives, arts or anything else that might develop their human side, as opposed to just their intellect. Anything less than perfect grades = failure. The kids are pushed into extra tutoring, test prep courses and even athletic trainers so that they can be the best. (Yes, at sports, too!)
Although some students thrive in this atmosphere, many others do not. Over the years, DH has had several of his students hospitalized for what would have been called in the old days a "nervous breakdown." Some of their parents even came to the teachers and asked for assignments to be brought to the hospital so their kids wouldn't fall behind. Can you imagine? The pressure to be perfect also leads to cheating and a whole lot of begging for points once grades come out.
Your post reminds me of a recent short story about high school students striving to be admitted to selective colleges:
http://www.theatlantic.com/magazine/archive/2012/06/honors-track/8986/Honors Track
By MOLLY PATTERSON
The Atlantic
June 2012