The Village Voice's Robert Sietsema thinks he's found it at Il Brigante:
At its heart, Il Brigante is a pizzeria, and a damn good one. The rear wall is dominated by a flickering wood-burning hearth inside a limestone proscenium, where a sweating and grunting pizzaiolo is the star of his own small repertory theater. In the style of southern Italy, the 10-inch pies are intended for individual consumption. In fact, the margherita ($10) is the city's most perfect evocation of the true Naples style (even surpassing top spots like Una Pizza Napoletana and La Pizza Fresca). Starting with an irregular round of glove-soft dough with no yeasty taste, the margherita is dampened with plain tomato sauce and excellent cheese, bravely wearing a pair of fragrant basil leaves on its bosom. Eat it with a knife and fork—this is no New York pie.
Address: 214 Front Street, New York NY 10038 [South Street Seaport area; map]