Wolfgang Puck Cafe is indeed kid-friendly - and it has a bit of the slightly-too-loud-but-that-s-part-of-the-fun ambience you find at a lot of WDW restaurants. We always enjoy going there. Good food, too, and interesting selection.
I've never done the Rainforest Cafe, but that seems a natural kid-friendly choice to me.
Dunno about Raglan Road.