I've never stayed at a value resort but I have stayed at POR, POFQ and CB. My sister has stayed at the value resorts and said they are fine but if you are going to spend any time at the hotel and not just at the parks, which you probably will be with little ones, go for the moderate hotels. We stayed with our 2 and 4 year old at POR last year for the first time and we LOVED it. They had a great food court even though my son, the pickiest eater in the world, literally only ate macaroni and cheese the entire time we were in WDW, including for breakfast one day
. But they had a great variety for the rest of us, including a turkey dinner for $9.00. The kids loved the pool and we took advantage of the life jackets available. We also did the horse and carriage ride which the kids loved. We are going back to WDW this year and the only reason we aren't staying there is we thought we'd splurge on a deluxe hotel but otherwise we would be back at POR!!
The playground is great there as well for the kids to blow off some energy and we did do alot of breakfasts in the room. I sent a package to myself ahead of time with cereal, cereal bars, familiar snacks, etc and then bought milk when we got there and we were all set for breakfast and I packed some snacks in my backpack for the kids if they needed them during the day. Works out perfectly if you have the DDP, we never ended up buying extra and had a few snack credits left that we used up on "food suveniers" the last day and your picky eater is happy with familiar foods/ snacks.