I'm going for 7 days in September and I had the same decision to ponder, DxDDP or reg
DDP. I've obsessed over this so much that my wife thinks I'm nuts for spending so much time thinking about it. (I had to show her this forum to prove that I'm not the only one

)
After initially deciding on the reg DDP, I calculated how much I would spend at the restaurants I would go to and the CS meals I would have. I found that in order to save much, I would pretty much always need to order the most expensive items on the menu. Otherwise, the savings are pretty minimal now that they've removed the appetizer.
So then I began looking at the DxDDP. First off, I knew that there was no way I would be able to have three full meals a day and finish all the food. However, I liked the idea that I could use two of the credits on dinner at a Signature restaurant and the remaining credit on a nice TS breakfast or lunch.
When you look at it this way, the savings with the DxDDP are pretty obvious. Essentially, you can easily spend the $70 a day the plan costs in just one dinner at a Signature restaurant.
Examples:
1) California Grill - Jumbo Lump Crab appetizer ($16), Scallops main course ($34), Pear Tart dessert ($10), drink ($3), tax ($4) TOTAL-$67
2) Narcoossee's - Mussels appetizer ($15), Surf and Turf main course ($58), Creme Brulee dessert ($7), drink ($3), tax ($5) TOTAL-$88
3) Yachtman's Steak House - Seafood Salad appetizer ($16), Rib-Eye steak main course ($37), White Chocolate Macadamia Nut Pie dessert ($7), drink ($3), tax ($4) TOTAL-$67
etc., etc.
This means that each day I eat at a Signature restaurant, I get another TS meal and two snacks for free, which can easily come out to $30+ a day. The resort refillable mug is a nice throw-in perk.
The main difference between the two plans is that the DxDDP's credits can all be used for TS dining and appetizers are included. This dramatically increases the savings.
This plan makes sense for me because I like having an appetizer with my meals and I like trying higher end restaurants like the Signature restaurants. Also, even though I wouldn't be able to eat three full meals a day, I think I can easily handle two, especially with all the walking involved in doing the parks. I also like the idea of being able to try more TS and character meals. I'm the type of person for whom eating is one of the most important parts of my vacations.
Sure, I'll be spending more per day than I normally would on food, but what I'll be getting is an amazing food trip to remember at substantial savings.
However, I know not everyone's values are like mine and what's important and enjoyable for me may seem like being tied down with a leash by all those ADR's to others.
Therefore, the conclusion is that even though savings can be much more easily realized with the DxDDP, it is only a value FOR YOU if you really enjoy eating, especially at the Signature restaurants. If eating is not so important to you, you can either pay OOP or use the DDP for some minor savings.