Oh the picky kitties!!
for ages we had to feed our Gandalf a special, vet prescribed kidney specific canned food. He actually wasn't fond of wet anyway, much prefferring the dry so his reponse to the prescription stuff was "Ewwwww!. the only way he would eat it is if i sprinkled this special supplement over it. The dru food, also prescription, he LOVED.
The Friskies and similar are not a choice I would make because of the ingredients, and the fact that our vet doesn't support them due to lack of benefit to their diet.