You might want to ask in /r/rawpetfood too for a more concentrated audience.
Qwedrft already covered what "prey model raw" is and its contrast to BARF.
My dog was weaned onto The Honest Kitchen (THK), a dehydrated food product. I wanted him to eat "good" food but THK is expensive so I cut it with "good" kibble. We started with Wellness CORE and experimented with a few different brands and flavors before settling on Orijen Six Fish. He didn't seem to have a preference for any particular kibble type and his stomach agreed with all of them about the same, so the kibble search was fueled by whether I liked the food. I had read about raw food but didn't want to deal with it at the time.
I had lots of trouble getting him to eat his THK and kibble. Like, I would put people food into his bowl with the THK and he wouldn't eat it. I once put a pancake, a sausage link, and an egg in there and I ended up throwing it away. He was rather underweight for a few months. I'd feed him just kibble and he would eat it, but I wasn't super comfortable feeding just kibble. (Whole food is best food, after all.) We tried a variety of dehydrated products and his appetite for those was very low, too. His appetite for kibble waned after a while.
My mom was roasting a chicken and it came with a whole chicken neck and some of the giblets. I fed it to him and he ate all of it without hesitation. :U
After feeding him raw every now and then, I switched to full raw because I was tired of buying food he wasn't eating.
Palatability is what made me switch to raw, but I continue to feed raw because
He has a noticeable, positive difference in his demeanor and energy when he eats raw
I have full control over his diet and he will never be affected by unsolicited formula changes, hidden ingredients, or pet food recalls
His health and mobility is directly linked to inflammation from his diet; the raw diet I feed him now has reduced the rate of lameness and injury by 100%. I no longer need to give him NSAIDs before strenuous exercise and anyone can tell that he just feels so much better on a daily basis. (Full disclosure: raw diet with chicken also made him lame. Raw diet now does not include chicken.)
I thought his coat and skin condition were excellent on THK/kibble but then I switched to raw and his coat is literally iridescent in the sunlight. His teeth are awesome for a 5 year old dog that's never had them brushed. His breath is never smelly and neither is his body. He feels so clean all the time.
His poops are small, firm, and easy to pick up. If I don't pick them up, they dry out quickly and crumble to dust. No worries about getting sticky, starchy poop on your shoes.
I have made similar dietary changes in my own life and have experienced a world of difference in how I feel mentally and emotionally. I am convinced that a diet of primarily whole, fresh food is the foundation of health.