Depends on where you are staying and how many people are in the room. I had free dining for my upcoming Sept/Oct trip at CSR (thanks to last Sept's bounceback program), but gave it up last week when the AP discount codes came out. I'm going solo for my fall trip and the AP code gave me 40% off during the week and 42% off on weekends, so beat free dining by a mile. With the money I saved I was able to upgrade to the DxDDP and Disney still owes me money back. Plus I didn't have to buy another one day park ticket I didn't need.
Now for my Dec trip I'm in the opposite boat.
I have a room at CSR again, but used a 40% off PIN code that I got for certain dates in 2009. My husband and mom are coming on that trip and I'm desperately hoping that free dining will be extended or that the Chase Visa free dining offer will be offered again. With three adults in the room, free dining would beat my 40% code.