Top 10 All-Time NYC just off the top of my head without doing any research in no specific order after Kareem:
-Kareem
-Connie Hawkins
-Marbury
-Mullin
-Kemba Walker
-Bernard King
-Billy Cunningham
-Kenny Anderson
-Tiny Archibald
-Artest?
Very nice list, although absent are Brooklyn born Michael Jordan and Carmelo Anthony, although maybe they don't count having left the city so early.
Having Googled: Lenny Wilkins > Kemba Walker, and from another era Bob Cousy, Richie Guerin and Dolph Shayes might figure. And Roger Brown deserves mention. And if NYC included East Meadow, Julius Erving is top 10 and of course Matt Dougherty.
Would be interested see a list of top 10 LI players. After Julius how fast do we drop off to Wayne McKoy and Wally Szczerbiak?