The reason Vets have science diet is because they get a nice little kick back from the maker
I have my 3 on Nutro Natural Choice small bites Lamb + Rice and they all seem to do very good on it

I have a city theme in this house with my furkids as you can see so i just open up the map and read them till i get to one that i think fits them Except Phoenix i named him that because of the story behind that name in memory of Denver

I'm thinking Hampton

Good Luck