Ultimately, you have to make the decision, but like PP have said, the DxDDP is a BIG schedule. My DH has totally rebeled against the idea of ANY schedule after doing the DxDDP last June and we are doing the QSDP this time around. I agree with him, with the exception of one character breakfast. So for our upcoming trip, we have ONE ADR scheduled.
But here are some of the mistakes that I made when scheduling the DxDDP for us. You know one of the reasons that everyone says it is so much food? Because they "maximize" the DxDDP by trying all new restaurants and almost always not repeating restaurants. This makes travel a nightmare and your schedule a nightmare. I'll tell you, especially with 3 kids in tow, you would be much better off, and not feel as scheduled, if you took a look at all the options that are so close to your home resort.
Like a PP said, Kouzzina is right there at the Boardwalk. I would try it for breakfast, and maybe more than once. If you were on a different vacation, you probably wouldn't think anything of eating at the restaurant at your hotel for breakfast just about every day of your vacation. After all, it's breakfast. By the time you were done, you might be sick of the selection, but likely you would have tried everything that would appeal to you. Fortunately, you have more choices all within walking or a boat ride across the lake distance.
If you like breakfast, and generally, kids like breakfast...then schedule Kouzzina, Cape May, and even Captains Grill for breakfast. You could do Kouzzina and Captains Grill more than once in 8 days. I would shy away from doing the character breakfast more than once, but that's me. You could flip flop doing a regular sit down breakfast with some snack breakfasts (the bakery at Boardwalk or something that you grab the evening before for the next day.) I know people will hit France and grab croissant sandwiches and pastries and save them for the next day...)
I tell you what...it's way more fun to hit a park and have rides be the first thing on the agenda, NOT food. Just a kid's perspective. Get your food taken care of in the morning before you hit a park, at least as a rule. Of course, you can break it for something like Tusker, which only has characters at the breakfast meal...but I'm just saying...
If you are confident in your park schedule, then you could schedule an early lunch on a snack breakfast day. For example, schedule Crystal Palace on your MK day, especially if Mk has am EMH. You'll be so ready for food after all your running around. Likewise, the Hollywood Derby was such a good lunch for us on an AM EMH DHS day. Otherwise, plan on a CS lunch after a TS breakfast. Don't worry about when and where before hand.
Then flip around scheduling Signature Dining, again, close to your home resort. Odds are that you would like to be home and maybe even change clothes before dining at a Signature, so schedule the dinner close to home. Then you don't have to worry about where and when as much.
You've got Yachtsman Steakhouse and Flying Fish for Signatures close to home. Other TS are Cape May (which is totally different for dinner), Kouzzina, and Captain's Grill again. If you don't want to eat at any of these for dinner, you could do a non ADR restaurant, like the ESPN Club and Big RIver Grill. That's 7 unique dinners that could be close to home.
The beauty of doing this is that IF your youngest starts to make a fuss, then dealing with this could be a lot easier if you are close to home, especially in a resort setting. It'll be easier to find a quieter location or even just go back to your room for a break, whatever, I just picture that the whole scenario feels more manageable in the event of meltdown from anyone.
Only make a select few "destination" restaurants. Mix and match eating close to home with eating in a park. I wouldn't schedule ADRs in two different parks on the same day. This will help you to feel that you are not running around and totally scheduled.
There is a way to maximize the DxDDP whereby your vacation feels like it is totally centered around food. There is another way to maximize the DxDDP whereby you make the plan work for you because you open up the possibility of being able to eat at either TS or CS ALONG THE WAY...opening up more dining choices in your touring plans, without having your touring plans be entirely food driven.