Not sure in NY, there I tried only ovest and a couple of others so I can’t really judge. In London I tried all the famous ones: Da Michele, 50 Kalò, Sartori, Santa Maria, Santorè, Franco Manca and probably many others that I don’t remember now.
Da Michele I think is a bit overrated. In 50 Kalò I appreciated a lot the extremely fresh and flavourful ingredients but the pizza dough was not the best. Santa Maria, at least the original in Ealing Broadway, is probably more tasty and balanced compared to the others above. Franco Manca has a pretty good price/quality ratio, but it’s not as good as the previous ones. As a matter of personal preference Sartori is the best that I tried in London, just a sliver above all the very nice ones cited before, and also a bit better than his “twin” place Santorè.
I’d like to go back to Napoli and try Sorbillo’s pizza there. In my place in Italy I can’t find a pizza as good as London, for what is worth...