I know about the difficulties you are having finding a food that your cat will eat. I have one that is fairly picky and my mom has a cat that won't eat anything other than Fancy Feast as well and he has even been starting to go off of that. My girl only wants to eat chicken based foods (I would love to get some different protein sources in her) and she will eat fish, so that I buy fish foods as a treat once in a while.
Just an FYI, I did try strictly canned at first but it wasn't until I started feeding the grain free canned that my big girl lost her weight. That seemed to be what made the difference.
Here are some links to foods that mine have found very palatable. Mine are on the Wysong full time. They eat mainly the Chicken Au Jus and for a treat they love the Chicken Stew. The one that they go crazy over and my mom's will actually eat as well is the Almo Nature. Most of these websites have store locators, although I have discovered that not all stores that carry the food are necessarily listed.
Almo Nature - Almo Nature
Holistic, Natural Dog Food, Raw Dog Food, Cat Food, Pet Food, Ferret Food, Cat & Dog Supplements
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