Which fast food chain has the best burger and fries? It's been the source of endless debate, but now, according to a YouGov poll, it's finally possible to reveal the answer. Over a third of people in the United States say McDonald's have the best fries but the same cannot be said for the Big Mac which trails the competition in the popularity stakes.

Just 7 percent of people think McDonald's have the best beef burger - Burger King and Five Guys are in the lead with 15 percent each. 10 percent of people gave the green light to Burger King's fries, some distance behind McDonald's impressive 34 percent.