I ordered a tuna sandwich from Subway, Jimmy John's, and Jersey Mike's to see which big-name chain makes the best classic sub. One stood out.

Sorry grilled cheeses, but tuna melts might be the most decadent sandwiches in the game. Hearty, rich, and savory -- with a cheese pull that's out of this world -- a tuna melt is a mouth-watering ...

However, as far as actually ranking the sandwich against other sandwich types goes -- grilled cheese, for example -- tuna only ranks as the fifth-most popular variety in the United States ...