Also, my fave place after living in New Haven for a year was technically in West Haven (Zuppardi's) but that's splitting hairs.
I’ve spent time in New Haven and NYC and… not even close. Sure there’s good slices in New Haven, but there are also pizza deserts, and a lot of them. New Haven does compete with NYC on restaurant-style pizza though.
Most of the good places in New Haven (Pepe's, Sally's, ...) didn't even do slices. New Haven style requires a fresh, whole pie.
Yeah this is how this conversation typically goes "but we've got good pizza from X, Y, Z restaurant" — is not the same as just walking to the corner and paying $2 for a big cheese slice — the NY slice is essentially a street food, like street tacos are in some states along the mexican border