We have stayed in Fort Wilderness Homes, Old Key West and the Beach Club Villas. All have full kitchens, as well as daily maid service. The Villas also have a full washer and dryer in the unit. I would recommend any of the above, each for a different reason.
The Cabins are remote and rustic, and also less expensive. A drawback to the Cabins is they are more remote than the other sites, and transportation is a bit more difficult. I would recommend a rental car for getting anywhere other than the MK. But it is beautiful, quiet, lots of room and many (free) things for young ones to do at the campground. We loved it there.
Old Key West has the largest rooms on Disney property. The are great for a group. We had a 2 bedroom Villa for our extended family, and we loved it. It has a Key West theme, and the grounds are beautiful. In my opinion the bus transportation was efficient and good. Old Key West is also the only property where you can park right outside your Villa if you have a car.
The Beach Club Villas are our favorite, primarly for their location - right in the Epcot area. Our kids are adults now, and we tend to spend a lot of time in Epcot. These Villas are within walking distance Epcot, and also MGM.
All of these sites have full kitchens (Villa studios are kitchettes, with a small refrigerator, microwave and coffee maker) The kitchens are fully equipped and you can easily cook a meal and save some money. We also loved having cold drinks and snacks available during the day.
With the washer and dryer in the Villas, I pack less and do laundry during the week.
If you have any questions let me know.