of the two, i liked njds more than nyu. but if you were to compare them, i guess i'd say look at some distinguishing features:
NYU: city, large class size (and the pros and cons that come with it), lots of new technology, lots of faculty
NJDS: newark, average size class (probably a better chance of getting to know your professors/all your class), recently redone facilities, campus housing across the street
i think if i were you id probably lean to njds..youre not far from the city if you really want it and you do have all the perks of belonging to a small class while still being provided with some nice facilities
just some of my thoughts..