Only way to compare any of these schools academically is comparing apples to apples. The only equalizer among any school, public or private, which will in the end ultimately decide college admittance, SAT/ACT scores. Don't let anyone fool you otherwise.
So Chaminade would be 1, but keep in mind Chaminade self selects those kids who if they went to any other HS would also score at a higher level on SAT/ACT. So did Chaminade produce the top scores, no, the kids did. And those kids if they chose St.Anthonys or St. Mary's or Trinity or podunk HS, still would get the higher SAT score.

You know everything you need to know to do well on SAT by end of 10th grade. no math higher than 10th grade on the SAT, and some 11th grade trig on ACT.