Neither.
New York started to fall off when they saw how much money West Coast artists were making.
They saw them as lyrically inferior, and figured that..........if they focused on putting out similar content, they'd make more money than them since they considered themselves to be better lyricists.
Problem is, they lost their identity in the process in the sense that all they talked about was the streets.
Back in the day there was more variety in New York.
Of course you had the hardcore artists...........but you also had artists like Tribe Called Quest...........De la Soul..........the whole Native Tongues movement.........the 5 percent influence with Poor Righteous Teachers...........KMD...........King Sun, etc.
Granted, there was some good music that came out as a result.
However, the last golden age of NY HipHop was in the 2000's.
Mainly from 2001-2008 with the various movements:
Dipset Movement..........Ruff Ryders/Lox...............G-Unit...................and Rocafella.
After those movements died out, NY Hip Hop was never the same.
There's flashes of it here or there, but it'll never be what it used to be.
And this is for Hip-Hop in general too.
Since it started in New York............regardless of how much it's spread across the world..........New York still sets the tone.
Or it least it's supposed too.
Once that stopped being the case............Hip-Hop suffered as a result.