Linda,
I have never been to New York, but the best pizza I've ever had was back in the 80's when I had a gig at a studio in the Silver Lakes area of So. Cal. We were done and I was looking to get out of there when the production staff said "Oh no, you are coming with us for pizza".
I was taken to a place a couple of blocks away called Luigi's, where they ordered two large pizzas with "extra cheese and slightly extra sauce". It was amazing! Best pizza I've ever had, and something I have continually tried to reproduce at home since leaving So Cal (with limited success due to not having a pizza oven). Chewey/crispy sourdough crust, dripping with melted moz and a sauce that was incredible. So tasty, toppings would have ruined it. Even additional seasoning (which some friends I'd later brought to this place insisted on) would have ruined it... it was that good.