A: There is no correct answer, since this has been debated for years. We'll see what the blogger community thinks.
New York Style
New York Style Pizza is known for its thinly kneaded dough, basic toppings, an evenly spread ladle of Marinara, and a hefty layer of cheese on top. The slices are generally as big as a blanket and about as flimsy, so most people fold it in half and eat it like an Italian taco. If you piled a ton of toppings and sauce on such a thin layer of dough, it'd ruin this pizza's pizazz. Its simplicity is the essence of why it's so good. It's the perfect food for people on the run or after a late night drinking.
Chicago Style Pizza is literally a "pizza pie", since it's stuffed full of ingredients inside a deep dish dough, then it's covered in cheese and finally overlaid with a thick Marinara Sauce. A much heartier pizza that will fill your gut after only a slice or two. If you like a thick crust with an array of ingredients and gooey cheese, this is your pizza. This is a perfect sit down for dinner type pizza.
The New Yorker's are always going to say "If I wanted some lasagna, I'd go down to Mario's over dea on da corna."
The Chicagoans are always going to say "If I wanted some cardboard, I'd go pull some out of the dumpster."
Let me know what you think is the best and I'll tally up the winner from the comments left on this blog.
I'm not going to give you my personal preference on the pizzas, to keep it unbiased.