> Catholic High Schools are the best high schools in the country. You can't do better in terms of what you're going to learn and where they're going to get you.
Yes, you can do much better than Catholic high schools.
To elaborate, I matriculated at a prototype charter high school, with a total student population that fluctuated between 100 and 125, that was based at a university. Instead of taking classes taught by in-house instructors, we enrolled, full time and at no charge, in the same courses that were available to the greater student body. Moreover, we were allowed to set our own schedule, including during the summer months; granted, the administrators preferred that we stayed on campus at least 30 hours per week, so as to not incur financial penalties from the state.
In any event, while we had increased course requirements, due to the fact that we had to comply with the state's high school graduation guidelines, it was relatively easy to finish with one or two S.B.s or A.B.s by the time most others in their age group were finishing high school. For example, my class' valedictorian went through the pre-med curriculum and left with an S.B. in Chemistry, maxima cum laude, while our salutatorian earned an S.B. in Computer Science and an A.B. in Statistics, both egregia cum laude. As for myself, I was able to complete an S.B. Electrical Engineering and an S.B. Computer Engineering, both summa cum laude, and was missing all of around 6 courses and 3 labs needed for an S.B. Biology.
As for our opportunities afterward, they were manifold. My class' valedictorian was admitted, with a full ride, to the medical school at UPenn and is now a researcher there. Our salutatorian went to the SEAS at Harvard, on a full fellowship, and later was hired at Goldman Sachs with obscenely high starting salary of $375k annum. I wound up at WashU for both an M.D. and an Sc.D. in Electrical Engineering, on both a fellowship and a research assistantship, but left before completing my dissertation and clinical rotations to pursue a Ph.D. in Applied Math at Yale. My other classmates, let alone those students that have graduated since I did, ended up at places like MIT, Princeton, Cornell, Columbia, Dartmouth, Brown, Stanford, UC-Berkeley, UIUC, and GaTech, with those in technology-related disciplines making well over $200k annum now.