Have you ruled out the Basic DP? It will cost your family $22 more a night to have that second meal be a TS vs a CS meal. So if you think you'd spend close to $154 for those 2-3 Table service meals the plan would be a good choice for your family (Chef Mickey's breakfast $63, The Plaza $51, Boma Breakfast $47). I chose 3 of the least expensive TS meals and it was pretty easy to go over that price. But if you ate those on the DP you'd still get 4 more TS meals for that extra $154.
There is no charge for the 18month old and the 3yo is $10.99 vs $8.99 and your price is $39.99 vs $29.99. There is no character meal less than $12.99 for a child. So any day you do a character meal, CS and grab a snack for the 3yo you get an amazing deal.
The DP does require some planning and you need to use those credits, esp TS to get the most out of the deal, but it is a really good deal when you have children under 10.
We did this (2A and 1C) and really liked the plan. We visited all 4 parks and planned our meals to be convenient for our plans. We did travel from MK to Epcot for a meal, but we were leaving MK anyway (eat and back the resort for a rest because we were doing a late party night) so it didn't really matter where we ate.
We only had two TS meal inside a park, Coral Reef and Hollywood and Vine. The rest were resorts (Narcoossee's, Boma and Chef Mickey's).
- H&V was the Fantasmic dinner package
- Narcoossee's was our first night, no park that day
- Boma was dinner right after leaving Animal Kingdom
- Chef Mickey's was a late breakfast after a late night at MK
One thing I didn't realize until we were "in it". It was sooo nice to have that TS lunch. We started in the park at 8am, rode a lot and were famished by noon. It was so so nice to take a lunch break and be served.