Not sure when you're visiting and what the weather may be like, so I don't know if you'll need a break from the heat. But I like a break from the crowds and walking no matter what the weather.
You're not really giving us a lot to work with here. Are you arriving at rope drop? Is it an EMH day and are you going to be there for EMH? Will there be children in your party? What ages? Do you have hoppers?
we will be there 12/3-12/5. 12-3 is MVMCP, 12-4 is MK, 12-5 is DHS. dont know park schedules yet. Not sure we can make rope drop. Kids are 5 and 2. Base tickets
I usually have hoppers. I typically arrive for rope drop. I like to experience the popular attractions in the morning so I don't have to wait in line. Then I have lunch, maybe go to the Philharmagic or Country Bears, then go to the resort for a break. I like my breaks any time of year.
After the break I like to go to Epcot or DHS - they're usually open later than the MK during the "slow season". Then I visit the MK again another day (or two) during the trip.
Since the MK usually closes earlier than other parks during the off seasons I get hoppers specifically so I can go to MK early then another park that closes later.
How long the meal at CP takes you will kind of depend on if you have kids in the party and how long they (or you) want to spend with the characters. I
can get in and out of a Disney buffet, including one character visit to our table, in about an hour.