Go to the admitted student days at all where you are accepted. You may be surprised by one that’s not on your short list. And your favorite may become clear.
As a student at a JBS, you may also have a little more clarity in what you want as you have experience in a boarding environment. That will help.
If you have friends at those schools, reach out to them too when the time comes. You will know them and can interpret their feedback with an understanding of their lens.