Conventional wisdom is that Exeter has the most expansive math department and perhaps more than its share of powerball winners.
But that doesn’t mean the other schools on the list can’t handle a powerball winner, too.
They are all good enough. They are all in the top 99.9 percentile of stem schools.
“Best” is subjective even for powerball kids, and pretty much irrelevant- both because your kid has to get accepted first and because the curriculum similarities far outweigh the differences. It is the rare kid for whom only one quality of a school determines fit.
In my opinion time is better spent if you just assume that stem and humanities at these top tier schools will tick all of the boxes for your child, and look at everything else a school has to offer and/or how they deliver it. Even the most mathy of kids at the most mathy of schools will only spend a fraction of their time in high school doing math.