What boarding school should I consider?

[Maylilyx]

I apologize if this is in the wrong category. I registered recently; never really been to this site.

I'm considering:
Phillips Exeter
Hotchkiss
Lawrenceville
Linden Hall
Hockaday
+any school with high SAT scores

Questions:
1: Out of these, which is the most relaxed? i.e no mandatory study hall/relaxed dress codes/relaxed on cell phones/relaxed on lights out.

2: To people who have been there, how did you feel about it? What were the people there like?

3: Which is hardest/easiest to get into?

4: How nice are the dorms? Is it big or very small?

5: How much free time do you have a day?

6: To people who have been there or know people who have, was the school fun? I know these are all schools meant to get people into Ivy league but that doesn't mean I want to torture myself while doing so.

7: Is there one thing each school is famous for? i.e. sports, dance, art, or prep school?

These are all the questions I can think of for now.