My preference in a food for them is a grain free one. Not because either of them have ever shown any issues with grain (or any foods, so we are lucky), I just think it is healthier for them. [They do get some grain filled cookies, and I am ok with this because the bulk of their diet is grain free].
For the longest time my pups ate Fromm. They did well on it. My issue is that is $100 a bag. With a Phod in our life who eats 4 cups a day, and a Lee who eats 2 cups, this only lasts us a month. While I liked the food, I wanted to know if I could find one that was as good for them and not so hard on my pocket book!
Then I tired a Canadian made food that's name has completely escaped me. It is a new company (like a year old). I liked it but it was hard to find (I only found one store that carried it and it isn't in the most convenient location) and again was very expensive. A $70 bag didn't last the month as the bag was smaller.
We tried Nutrience but it gave us farty dogs. Really bad, stinky farts.
This month we are trying Halo.This is the company Ellen Degeneres is the co-owner of. It is cheaper, at about $65 a bag that will last a month, and seems to agree with the dogs. It is also carried at the pet store by my work, so it is easy to get. (I don't have to drive all over the city to find it).