Hey,
Seems you've fallen into the "name brand" trap, which is perfectly reasonable. I think all of the NYC programs will train you well and get you any fellowship (and I'm sure people have different opinions on this matter, but I think they are just nit-picking amongst details). If anything cornell and columbia don't treat their residents as nice, but I suppose mt. sinai and nyu don't have that ivy league status. I'm sure people will say that for an academic career go to columbia or cornell, but I personally don't buy into that belief either. So if you crave "name" recognition, then I would not make a return trip because you would just be wasting money and time