Absolutely agreeing with rainbow! Go with canned, and whatever you do, stay away from any and all "indoor" or "light" kibble formulas. These are loaded with way too many carbohydrates for an obligate carnivore. And if your cat is male, I suggest you eliminate all the dry. Cats really don't need it, they need the moisture from wet food, but male cats especially! They are prone to urinary tract blockages, which occur when urine is concentrated from not enough water intake. Canned food ensures they get that water. You can read more here:
http://www.catinfo.org/