Best item from every fast food place I can think of

McDonalds - Fries
DQ - Blizzard
Burger King - Parmesan Chicken Sandwich
Wendy's - Regular Chicken Nuggets
Taco Bell - Cheesy Gordita Crunch
Sonic - (Don't think I've had their best item yet, but so far:) Jumbo Popcorn Chicken
Arby's - Smokehouse Brisket Sandwich
Checkers - Chicken Bites Box
Popeye's - Classic/Spicy Chicken Sandwich
Shake Shack - Any burger
Five Guys - Milkshake
KFC - Boned-in chicken
Chick-fil-a - Chicken anything basically, can't go wrong
Panda Express - Orange Chicken
White Castle - Sliders
Subway - (too customizable)
Quiznos - (too customizable)
Jersey Mikes - The Original Italian
Panera - Mac & Cheese
Moe's - Chips & Guac
Texas Chicken & Burgers - (Haven't had anything special yet)