Now... if anyone had some advice regarding switching cats from kibble to canned or raw... Mine would rather be sick than eat the moist.
Best cat site on the web: http://www.rawfedcats.org/
See the link "Practical Guide" link for help with transitioning. Note that the first step is to stop feeding 24/7. If your cats are refusing canned food, I'm betting you're feeding kibble free choice. That is TERRIBLE for cats and leads to so many problems. Start by offering a measured amount (1/4 cup is plenty) per cat for 30 min. only. Separate cats into their own rooms to eat (they learn very quickly where they each belong and will lead you there in order). Put it down, wait 30 min, and take up what wasn't eaten. DO NOT offer it again for 12 hours. Then do it all again. Since they like the kibble they will quickly figure out that they need to eat up when it's offered.
Once they are on the meal plan, start mixing in a little grain-free canned food (EVO 95% meat is best). Many cats will go RIGHT to raw so you may be able to skip this step.
Anyway, the link above explains it all in detail.
IMPORTANT: Pay attention to the warnings about hepatic lipidosis--cats cannot fast and you need to be careful about that when transitioning.
In my household, it took Calvin (who forced my hand on the raw thing b/c he had IBD-smelly poops, diarrhea, losing weight, poor hair coat, then not eating well, acting not himself, etc.) 2 weeks to transition. 2 weeks after that he was a 100% different cat--turned him around 180 degrees. Within a few months he was back at a good weight, with glossy coat, smelless poops, super energy, etc.
Lincoln (who died of cancer last year thanks to a shot of depo provera at the vet's 7 years prior
) transitioned VERY fast. Like 2 meals, LOL.
Jonah was weaned directly to raw and never looked back.