American cuisine is the best.

"If you could only eat one type of cuisine for a year, what would it be?"

I would have to say American cuisine.

Why American cuisine?
Why!?! Well, because it's AMERICAN! It's barbeque! It's apple pie! It's hamburgers and hot dogs and peanuts at a baseball game, that's why! It's slushies and sundaes and mint julep!
No, really...
Though I really do enjoy these aspects of American cuisine, these aren't the major reasons why I would eat only American cuisine for an entire year (BBQ was a major deciding factor, to be fair). While some may argue that American cuisine doesn't really exist, I have to say that not only exists, but it is also my favorite. Some are of the opinion that because Americans haven't really invented their own food stuffs (cereal? Come on, people...) we can't claim our right to a national cuisine since our cuisine would be made up of stolen foods.
What's not more American than that, right!?! We invaded other countries, yes, but in the meantime, something good came out of it!
Take Germany for example: beer, sausage, schnitzel, pancakes (origins could be traced to surrounding nations as well, I grant you), veil!
In fact, all cuisines have been shaped in these same ways, so it would be unfair to rob us of our right to a national cuisine just because some aspects of it may be borrowed from somewhere else

Take French cuisine: Until the 17th century when nationalism grew in France, French cuisine was thought to be "mini-Italian." Would it be correct to say that France, now the center of the culinary world, in fact doesn't actually have a cuisine because theirs evolved with many Italian influences?
Hell no. Have you ever eaten French pastries? If you have, you wouldn't be dismissing the validity of French cuisine.
Now that we've established that American cuisine does in fact exist, what exactly is it?
What is American cuisine?
It's a blend of all the different cuisines from all the different cultures of the world that have settled in the same space. Food brings people together, and the sharing of food most definitely is one of the main causes for the creation of today's American cuisine. A country's cuisine can tell you a lot about their past, their culture, and their people.

American cuisine is Japanese, African, Jewish. It's Mexican, Spanish and Greek. It's Italian, Chinese and Russian. American cuisine is Australian, it's English, it's French. It's modern, it's traditional, even medieval. It's everything that we are.

So what is America? It's a mix of everything. It's a place where people have fled to, emigrated, and struggled to get to. The amount of influence of a certain culture in our cuisine could tell you exactly how long that culture has been in America, and also could tell you something about the region in which you live, because all our cuisines are not the same.

For example, in San Francisco, the hint of Russian cuisine (whatever that is) is going to be stronger, more prevalent, than say, in Alabama. But the amount of Russian culinary influence in San Franciscan cuisine would tell you how long ago the Russians began seeking refuge in this country.
Why would I eat only American cuisine for a whole year? Because it encapsulates everything. I could, in essence, eat anything I wanted to for a year which is what I do normally anyways.