Chicken rolls are better. As far as KFC's Old Beijing Chicken Wrap is concerned, it tastes better than the burger.
1. The sauce for the Old Beijing Chicken Wrap is the sweet sauce of Peking Duck, while the burger's is salad dressing, and the flavor is better with the sweet sauce.
2. Burger skin and chicken rolls skin comparison, chicken rolls than more chewy, burger skin on the general bread crust, features not much.