It's a toss up for me. I think Wingstop is overpriced for what I like. I won't go to BWW without the deal, but at least they offer a deal. BWW is inferior on the soda front. BWW offers nasty Pepsi products while Wingstop uses Coca-Cola.
I love Atomic, Cajun, and Mango Habanero from Wingstop. I like Mango Habanero and Garlic Parmesan from BWW. The fries at Wingstop are far superior to the fries at BWW.
BWW has a rewards/loyalty program. I do not believe WS has one.
For your birthday, you get 6 free wings at BWW. For your birthday, WS gives you a large fries (real generous of them).
The nice part about WS is that you don't have to tip cuz it's fast food. Where you dine at BWW...you are an ahole for not tipping.
If BWW did not have the BOGO tuesday's, then I would go to WS, but because I can get 2x the wings on Tuesday's, I will take BWW.
There is a small chain where I live that does 69 cent wings on Tuesday's. I like that place, but they are not shopped. Now that I can get dining scenario BWW, that is my go-to place. I remember when WS was shopped. If they still are shopped, then apparently I don't know who with.