A subject near and dear to my heart!
Grotto Pizza - Locations throughout Delaware. Yummy, chunky, spicy pizza sauce, not a ton of cheese, crispy crust. My favorite location is the one on the Rehoboth Beach boardwalk.
Riccetta's Brick Oven - South Portland, Maine. Crust is tender on the inside, crunchy on the outside. Tons of unusual toppings. Love the pizza buffet during the week.
Amato's - Etna, Pennsylvania (just north of Pittsburgh). I've loved this pizza since I was a kid and make sure I go there whenever I'm home. Square pieces, very light crust, mild sauce and little fluffs of mozzarella on top. I never get toppings; no need to mess with perfection.
Beto's - Somewhere in the South Hills of Pittsburgh. Super chunky sauce and they bake the pizza THEN sprinkle the cheese on just when it comes out of the oven.