We tried McDonald's, Wendy's, and Burger King's signature burgers - and the winner is unmistakable

In terms of menu choices, fast-food chains are a lot like car brands: There's something for everyone.

A five-piece chicken nugget for the on-the-go soccer mom. A quarter pounder with cheese for the erudite lovers of the classics. A salad, for ... someone.

And for the person who enjoys the finer things in life, there are the flagships: the signature burgers. Without these, fast food would lose all meaning.

I decided to compare the signature sandwiches of the fast-food Big Three - the Whopper at Burger King, the Big Mac at McDonald's, and the Dave's Single at Wendy's - with one question in mind: Which chain truly makes the best flagship burger?