I will Rate & Review Fish Sandwiches from Popeyes, Wendys, Burger King & McDonalds. Flounder Filet from Popeyes, Alaskan Pollock from Wendys, Burger King & McDonalds. Popeyes & Wendys just released their NEW Fish Sandwich in February 2021. I will review the battle between all Four (4) of their sandwiches to compare and find out which Fast Food Fish Sandwich is the Best on the market today.