We're DVC members too, but not FL residents, so that being the case, one of us had to get an AP to qualify for the TIW card. I upgraded my park ticket to an AP (only one AP is necessary, not the whole family!), and I purchased the TIW card. We like going to more TS than CS meals, and the TIW card fit more into our plans than the DDP. We had our 2 sons with us, ages 3 and 5. This was this past July.
We are very happy that we went with the AP and TIW card. First of all, as a DVC member, the AP is discounted by $100. Second of all, there were so many shopping discounts for AP members, that as it turned out, everything I bought throughout our trip was 10% off! Including the Mickey ice cream bars I bought at the Screen Door General Store at BWV! This was a plus, since I bought some Christmas gifts for close friends who simply love Disney, and I had planned to buy their gifts in DTD at the Christmas Store. I did just that, and I got 10% off of everything!
Also...my DS3 is not so much a picky eater as he is an indecisive eater, if you will. At any given moment, he will decide not to eat a certain meal, or to eat something very small. For example, at our lunch at Chefs de France, he only wanted the kids' cheese puff app. So that's what we ordered him for his lunch, whereas DS5 ate the hamburger. Sometimes my kids would even share a kids' meal, as it was enough food for both of them. So the DDP would not have fit into our plans for these things either.
DH and I also like to have wine with dinner, or an alcoholic beverage sometimes. It was a bonus that the TIW card also gave 20% off of alcohol. Sometimes I would order an app as my lunch instead of a whole entree, and no worries about it being included as a component of a dining plan.