When we stayed at WL in early December 2000, there was often a considerable wait for dinner at Whispering Canyon Cafe. We would have tried it one of the nights but it was too crowded. You might want to set up a PS if you plan to eat there.
We had a PS for a charcater B-fast at Artist Point, but I don't believe they offer the character b-fast anymore.
Artist Point is somewhat expensive for dinner but the menu looks good and they have a kids menu for DS6. We didn't eat dinner there.
If you haven't looked already, there are menus w/pricing on WDWIG.com under the dining section.
Good luck