You should figure this out. How much are each of these schools going to cost? That is hugely important in deciding between them.
If they are all at sticker (and I don’t see how someone could get into all of these schools and not get scholly money), I’d put it down between Boalt and NYU. NYU will give you an edge in NYC over Cornell/UMich/UVA/Boalt. However, Cornell/UMich/UVA don’t really open up any markets that you don’t already have ties to. On the other hand, Boalt would help you get access to CA if you were interested in working there.
I think it’s likely premature to decide between these since I’m assuming you don’t have your final scholarship offers from all of them.