My vote goes to New York. It's where we were hatched, where we made friends and bonded, and where we had a great good time. I read 20 years or so ago that the van Rennselaer stopped being a hotel and became apartments or condos or some such, so we'll have to pass up that pleasure.

Alternatively, if people are feeling rustic, there's Litchfield, CT, and Camp Columbia. Remember bouncing off cliff walls, wandering through the trees?