I used to live in Germany and there was an Italian guy who owned a shop near my house. That was, hands down, the best pizza I've ever eaten.
When I was in college, we had Nizza Pizza right by campus. It's owned by a couple of New Yorkers and it shows. Love it.
http://www.nizzapizza.net/
If I get NY-style, simple pepperoni is enough. If I get "designer" pizza, I love BBQ pizza.