It depends... All of NYC ? or Parts of NYC? I know it just one neighborhood, but Bay Ridge has more bars than any other and the best site BY FAR is BayRidgeNights.com with over 45 reviews of Bars, Clubs and Lounges in Bay Ridge. BayRidgeNights also has an integrated community/forum, private messages, and buddylist system. Users can also upload there own photos, post photo comments, post reviews, and post promotional flyers on the MAIN PAGE all FREE OF CHARGE. So i guess the "best new york nightlife site" is a matter of location, and a matter of opinion.