I have a 4-year-old American Shorthair named Patches, a very healthy 20 pound male, neutered and chipped. I've been giving him Blue Wilderness in the dry form for about two years.
I've taken time to read and research most of the brands and thought I'd give him this. In the mornings, he gets the small package of fancy feast, then Blue Wilderness the rest of the day.
His food is out where Patch eats when he wants, but really just nibbles, when he's not either asleep or in the backyard exploring.
I also mix in some Hills Kidney Care from the Vet. Like others who use Blue, it is expensive compared to other brands and not every pet parent may be able to afford it, but it's very important to take time to do homework on what's in cat food and choose what's best for your furball.
It's also helpful to talk with your vet as to what would be a good choice, as we know we want our children to be as healthy as possible.