I feed Pro Plan Sensitive skin and stomach.
I know it's not the best food in the world, but Sierra has a VERY funny tummy and that's what works for her. About 6 months ago or so I tried switching to Wellness but Buddy had an allergic reaction to it.

By all means I know there are other foods that I could try that would be better for my pups, but this is what works for them and it has for about 5 or 6 years now. I'm not going to try to fix something that isn't broken.