@ellelie Congratulations on your admittances to these 3 excellent schools.
They are ALL ethnically diverse. Splitting hairs a tad, but Choate is ever so slightly more so than Deerfield and Hotchkiss.
Choate has 36% domestic students of color, plus 18% international students from 41 countries (school website)
Deerfield has 32% domestic students of color, plus 12% international students from 38 countries (school website)
Hotchkiss has 33% domestic students of color, plus 15% international students from 35 countries (school website)
We have/had family at all 3 schools, and know them fairly well (as do many people here on CC). We have found Deerfield to be the least culturally diverse of the 3 schools - it’s pretty preppy and focused on athletics, but it still has a LOT of cultural diversity. All 3 schools have tremendous school spirit. Deerfield and Hotchkiss are more rural, and IMHO Hotchkiss has the more bucolic campus setting of the 3. But Deerfield looks pretty on a Christmas Card!
Choate is more like a college campus - a lot of walking around. Some love that, but not everyone. Some prefer the more centralized campuses of Hotchkiss and Deerfield.
Choate SAT scores, 2018: 1320-1480 25th-75th percentile
Deerfield: unavailable
Hotchkiss SAT scores for 2018: 1360-1510 25th-75th percentile
Choate SAT scores, 2017: 680M/690E
Deerfield SAT scores, 2017: 680M/650E
Hotchkiss SAT scores for 2017: 700M/700E
Choate Boarding/Day: 75%/25% (865 students total)
Deerfield Boarding/Day: 85%/13% (660 students total)
Hotchkiss Boarding/Day: 97%/3% (600 students total)
About 50% of Choate boarders are admitted in the 9th grade, vs. 70% at Hotchkiss, and Deerfield in between.
Wallingford is 2-2.25 hrs. by train to NYC, Deerfield is 2 hours to Boston via bus/car, and Hotchkiss is 2.5 hours to NYC via train.
HOPE you can revisit. I know lots of people, including ours, who had their heart set on X, but after visiting and revisits, changed to Y, and then Z. It may be the students, but also the administrators/advisors/coaches/teachers you meet and just connect with, that help the decision.