The science diet is the best. My cats have the softest coats, they aren't fat, they don't have hair balls (they did when I had them on the kitten Science Diet but as soon as they were 1 year old we switched them to the indoor Science Diet and that cleared things up) and they like it. It's more expensive $38 for a 15 lb. bag, which lasts like a month and half, not bad for us and we only feed them once a day. But I wouldn't give my cats anything less, especially since Iams changed their formula, it's not as good as it used to be.