<p>Just going to clear some minds on the tiers and ranking, I retrieved all of this information from prep review, school admission organization, USA Today, and of course, College Confidential</p>
<p>TIER 1
1. Phillips Exeter Academy, NH
2. Phillips Academy, MA
3. Groton School, MA
4. The Hotchkiss School, CT
5. Deerfield Academy, MA
6. St. Paul’s School, NH
7. The Lawrenceville School, NJ
8. The Taft School, CT
9. Choate Rosemary Hall, CT</p>
<p>TIER 2
10. Milton Academy, MA
11. St. Andrew’s School, DE
12. St. Mark’s School, MA
13. Woodberry Forest School, VA
14. Episcopal High School, VA
15. The Thacher School. CA
16. Middlesex School. MA
17. St. George’s School, RI
18. Cate School, CA
19. Mercersburg Academy, PA</p>
<p>TIER 3
20. Georgetown Preparatory School, MD
21. Peddie School, NJ
22. Western Reserve Academy, OH
23. Concord Academy, MA
24. Miss Porter’s School, CT
25. The Hill School, PA
26. Emma Willard School, NY
27. The Loomis Chaffee School, CT
28. Northfield Mount Hermon School, MA
29. Westminster School, CT
and below</p>
<p>I have also collected information from many websites regarding the best all boy's and best all girl's schools in the U.S., and each website unanymously voted for the following</p>
<p>Best All Boy's School - Woodberry Forest School, VA
Best All Girl's School- Miss Porter's School, CT</p>