Congratulations on scoring 2 great admits.
You seem to know a lot of the details and stats for the schools. But consider this - maybe New York was meant to be... even if you are trying to get away from it
I understand getting a change is a good thing (not keeping all of your eggs in one basket) but in some sense, I see that as a weakness. If you are diversified, you can't stand out or leverage a strength since you are mediocre in everything. Instead these days folks trying to specialize and leverage that specialty/aspect/advantage. In your case it may be an existing network in New York, not having to move, and building up on what you have done already. Compare that to a person moving ton New York from San Francisco. Sure they will be excited to find a new tiny apartment, figure out the subway map, and see the big place, but they wont' have much to leverage. The first 6 months they will be a tourist and you can work your way to an internship while they tour the Empire state building... just saying.
P.S. Instead quit your job 3 months early and go on a backpacking trip around SE Asia or perhaps somewhere it is not as hot in July - South America, Australia, etc. there are lots of cheap-ish around the world tickets. That will be much more rewarding and "changing" than going to School in Boston, which is what, a 3 hour drive from New York?