Why do dogs like beneful the best?

They don't. Dog's really don't care what they eat, so long as it's food. Also, Benefull might use ''reall'' meat, but so does EVERY. OTHER. dog food, and the type beneful uses is the worst part of the animal, the diseased part, from roadkill, or a ''by product''/''natural ingrediants'' which are actually chicken poop, bones, and organs dogs arn't supposed to eat.

DONT feed your dog beneful. It has been known to give severe diseases to dogs.