Tacos is the way easy choice because there are way too many foods that are pretty much identical to them save for the name.
"Oh, this isn't a taco, it's a burrito!" "Nope, this one is just a fajita!"
Now if you're eliminating everything similar as well, the choice gets a bit harder.
Pizza and burgers are safe; they just have way too many different options to eliminate.
If fried chicken means more than just "fried chicken like KFC" and extends to things like breaded chicken strips, nuggets, wings, schnitzel, Indian style, Korean BBQ style, etc. then that becomes safe too and the taco bites the big one.
If fried chicken just means KFC style fried chicken though, Fried chicken goes and tacos stay, I'd rather not lose the variety.