I changed my old dog's food from grocery store kibble to more natural kibble and it has turned her life around. I used Eukanuba, Purina One and Iams before. Then I went to this website, http://www.dogfoodanalysis.com and chose the top brands there. They don't review every premium kibble or wet dog food, but there is a wide variety. Innova seems to lead the pack in most cases, along with Orijen and Wellness.
Since these foods are very expensive, I usually take a list and buy the ones on sale at Petsmart. They have sales on kibble every other week. On the off week, they have sales on good canned food. Ever since I began doing this, my dog has been more active and more interested in life.
I also have used Taste of the Wild, which was first of the premium foods I used, but I never see it rated these days.
By the way, do not buy anything by Waggin Train or any other chicken jerky product. They are ALL made in China and there have been periodic recalls of these products. In addition there have been recalls on Milo's Kitchen Chicken Jerky and it is also made in China.
My mother lost her cat years ago when China started to put melamine in their animal products to boost the protein content. These people have terrible human rights issues; why would we think they care about our dogs and cats?
Petco has some good treats made in the US under the brand Colorado Naturals.