Can't offer an opinion about New Haven, but Brooklyn has many more places than they do. Some might not be as good as their best. It's also about standards and the overall quality of the product. The surveys and critics often choose Brooklyn pizza places as the best, and having firsthand knowledge of it I can understand why. Some pizza in Manhattan, and even Brooklyn, sucks - like most everywhere else. No argument there, but the best places really shine. The "average" pizza in Brooklyn is far better than the "best" elsewhere.