To me, a chicken sandwich is a chicken sandwich. And McNuggets are the same as tenders or bites or fingers or whatever they're called. The sauce makes the difference.
But how about straight up fried chicken?
If you're lucky enough to live near me in central NJ, there's a single-location chicken joint called Chicken Delight. orderchickendelight.com They also do snow crabs, dungeness crabs, crab bisque soup... But the fried chicken is the best I've had outside of Mrs. Langston's kitchen in southern Georgia.
That's a lady I used to know, not a company. Her secret must have died with her, because her daughter could never make it as good.
As far as the big chains... well I'll go with KFC. But if you're ever traveling the Garden State Parkway, get off exit 135 and try Chicken Delight.
Call in your order because they don't have it laying around under a heat lamp. They cook to order.