No idea why DL and WDW are so different, maybe just more options at WDW.
Okay - character meals (we do every one each time too and actually do some more than once, we're totaly character meal junkies!)
Breakfast - Princess at Ariel's Grotto, Storyteller's Cafe with Chip & Dale, Minnie & Friends at Plaza Inn, Lilo and Stitch Breakfast at PP, and Goofy's Kitchen. Princess is "new" and we're just trying it out this next trip, but surely not to be missed if you have a princess fan. Storyteller's is animals and we always do this at least once or more if we're staying at the GCH. Minnie & Friends is inside the park so that's hard unless they have early hours when you're there - but you'll see Pooh and Friends there too and that's the only meal you'll see them at. Lilo & Stitch is a must for us since this is the only place to see Daisy. Goofy's is our favorite but we always save that one for dinner.
Lunch - Ariel's Grotto with the princesses and Goofy's Kitchen.
Dinner - Ariel's Grotto and Goofy's Kitchen.
So - we usually save Goofy's and Ariel's for evenings and lunch and do the others for breakfast so we can hit each one. Not enough dinner choices right now and they all book up fast. All are different and you'll have your own favorites depending upon the kids.