Of those three, definitely Purina One!

Hey, we gotta do what we gotta do when buying food for our pets. As others have said, I don't care what you feed him, as long as he's not hungry.

Just an FYI- you may end up spending as much or nearly as much on the cheaper foods that are full of fillers as you would on the more expensive foods. Dogs have to eat more of the food to feel satisfied, so it can end up costing almost as much as the higher priced foods sometimes.