You Are What You Eat. So Is Your Dog.

Here's a good article to start with if you think all dog food is the same! What's in the food?

While I certainly feel that just buying from the top brand isn't necessarily better, I think this article does a good job of sorting out why you should make a deliberate choice rather than just pick up whatever is cheapest, easiest, or your dog is most happy to be served (some kibble is coated in sugar...).

Food for thought, people.