Mine eat a variety.

I feed Hill science diet indoor formula, and the hairball formula(for them all). I feed Nutro indoor complete care weight management (for them all). I also feed Nutro Lamb and Rice for Billy. I feed Science Diet r/d and w/d mixed for Puff. And Royal Canin is what Suzie prefers. I think M.E will be put on Hills low allergen food when I take her back for her allergies shots this week.

I like them to have a bunch of choices, and I have good luck because Billy eats his food, which is the only one REALLY on a diet that he HAS to be on. Puff eats it when she wants, but not always. It works for us.

I think whatever is best for your budget and kitty, is what you should choose. I love Hills, and Nutro and Royal Canin. I wish Innova was sold around here.. I have wanted to try that out for some time.