I started with ground raw but I was too lazy to buy the grinder and fuss about with ensuring meat/organ ratio, adding supplements and all the other stuff so I started with Feline's Pride which is ground raw then I switched to Rad Cat because I can get it locally. Maggie's age and IBD make it difficult for her to eat whole prey.
My SVs are whole prey eaters. I get quail locally and rodents, chicks, mice & guinea pigs from rodentpro. Rodentpros food is cheap but the shipping is a killer. $200 dollars worth of food, which lasts me about 3-4 mos. costs more than $300 to ship from Indiana to southern Oregon. They have to ship next day or 2-day air. I keep nagging them to open a facility on the west coast and they keep saying they're thinking about it.
Even if you decide to feed raw ground, you can still give him a raw chicken thigh, beef heart, or chunks of meat so he can chew and stimulate his gums.