WOW! thanks for all the amazing info ... I'm not sure what all the letters mean

We have two boys (will be 6&7), and we're not real restaurant people ... if we did one of those it would only be one night. We're only staying 3 nights because we're going on a 7 night
Disney Cruise right after ... we just wanted a few days in the park for our kids. We definitely have snackers in my family, so the snacks seemed really appealing to us. In fact I don't really need to eat a full meal all day if I can snack! We don't have a ton of time in the park either ... so we want as much time playing rather than sitting at dinner somewhere!

Please send me any other suggestions you might have!
To me the question is do you plan to take the kids to a character meal? If the answer is yes, then I'd do the Basic and not the CS plan you originally mentioned. If you won't do a character meal I think the CS plan will be great for you. To pay for the CS plan AND pay cash for a character meal is a waste of $ to me.
CRT - Cinderella's Royal Table, have a meal in the Castle
HDDR - Dinner show with Mickey Mouse, fried chicken outdoor country western show that isn't my taste, but others love it and kids seem to like it, family style all you can eat comfort food
TS - Table service (ie. you'll have a waiter/waitress)
CS- Counter or Quick Service meal
I will tell you Chef Mickey's was the highlight of the trip for our 6yo boy last year and truth be told it was pretty high on my list as well. There are 5 characters there Mickey, Minnie, Goofy, Pluto and Donald Duck. The kids are TOLD to wave their napkins in the air, the monorail whizzes by overhead, it bright loud and a lots of choices on the buffet. It is the character meal I'd suggest if you were going to do just one.
Chef Mickey's would use 1 of the 3 TS meals you'd get on the plan. HDDR or CRT would use the other 2, thus only taking time for 2 meals vs 3 as I completely understand you wanting to spend plenty of time in the parks. However, character meals or a dinner show are kind of like the parks in that they are much more than just eating, Your kids would get to see the characters and get autographs w/o you having to wait in line in the hot sun. In fact you eat and the characters come to you! OK you boys might get a little excited and run to the characters, but hey at 6/7 that would be normal.
However, you may get all of that on the cruise and not want to take the time at WDW. As for the snacks, we had plenty of snacks credits. You still get 4 per day and there is a way to use the CS credits to get snack like items too.
Again your choice of plan is fine.