Both great but very different schools , cultures, and environments. FWIW Deerfield actually has cell service =))
On the other hand, Hotchkiss has a sweet golf course with amazing views. Nice problem to have if you get accepted and have the honor of making that choice. 
So true about cell service lol, I had a track meet at Hotchkiss and totally lost cell service once we were in Lakeville.
Loomis or NMH?
NMH- I love the casual dress code!
Berkshire or Blair? Why?
I would go with Loomis, the campus is beautiful. Also, Blair. Bigger campus, more people, more courses.
SPS or Milton?
SPS, 100% boarders vs 50%
Groton or Middlesex?
Groton!
Westtown or Salisbury?
Salisbury! I only hear great things about it. Everyone I know who goes there LOVES it.
NMH or SPS?
NMH! Actually got something in the mail about their summer program last week. Wish I could go, but my summers are CRAZY busy.
Concord or Cheshire?
Not sure why this thread is dead, but Concord.
Hill or Kent?
Kent, who doesn’t want to live on an island!
Taft or Tabor
Taft because of the preforming arts.
Groton or St. Marks
St Mark’s. An amazing school that doesn’t seem as caught up in its own history or prestige.
Hill or Governor’s?
Hill
NMH or Kent?
NMH. They make their own icecream! (I hear Kent is a bit of a party school … but that is just second-hand gossip. The school is also astoundingly beautiful and has some amazing programs. That said, I personally prefer icecream to just about anything.)
Middlesex or Millbrook?
Middlesex - wonderful, inclusive community
Stevenson or Webb?
Webb lol that was random.
Hotchkiss or SMS?
Hotchkiss cuz I don’t really like SMS’s campus (from pictures)
Milton or Loomis
Loomis. Prettiest campus I’ve ever seen with a really cool arts building and a brand new innovation center.
Concord or Middlesex?
I agree, Loomis was my favorite campus out of the 4. I’d have to go with Middlesex.
Groton or NMH?