let me say from an Italian point of view ,I travelled in USA, Canada, Uk.
Sorry guys, but you don't even immagine what real food is expecially a 1st quality pizza .
Even the best Italian restaurant in NYC is not serving you a real Italian dish. Chicken Parmigiana ? In Italy it simply doesn't exist period , the same goes for Spaghetti alla Bolognese and others BS they sell you.
The best pizza in US (no wood oven though ) was "surprise surprise" at Sbarro (is it the right name?) in Las Vegas.
Well obviously the best Hamburger I've ever had was in USA
The best escargot was in Paris and so on.
If you go to Ibiza you HAVE to eat Spanish and ask locals for suggestion.
I remember coupla years ago in London , I had the great Idea to eat pizza in a "so said" Italian Rest. , geez the pizzamaker was a Viet, lol I think I had what I deserved.