DO spend the weekend taste testing the best pizza shops in the city and start Friday night off with a cheesy slice from Scarr's Pizza in LES. DRINK a bottle of red with the Naples-style pie from Una Pizza Napoletana and dine like the Europeans at this East Village spot known for its fresh dough! EAT to-go on the UWS and grab a square slice of spicy honey-topped pizza from Mama's Too.