I can't say enough good things about Champion Pet Foods
Acana and Orijen are AMAZING! Jackson's favorites are Acana Grasslands and Orijen Regional Red. Check out the video on their official website
Champion Petfoods | Home... my dog eats better than I do!
lol. They have a great "White Paper" as well which explains a lot of their beliefs.
If I had to shop at a Petsmart/Petco, Wellness would be the way I'd go! Wellness CORE is great and I've even considered adding it into his rotation since we got a sample of it once and he loved it. Also, Go! Endurance (made by Petrucuan pet foods) is an excellent food!