For dinner or breakfast?
For dinner I recommend Ohana(no characters though). We've had our fill of it for awhile, but we really do enjoy it. We went to Chef Mickey's for dinner last year for the first time and all 5 of us were very unimpressed...though we were happy with the character interaction.
For breakfast, its the opposite. I recommend Chef Mickey's. We do this one almost every trip and its DH's favorite breakfast in all of WDW. The character interaction here is good and so is the food. Lots of choices for breakfast, IMO(I didn't think the choices for the dinner here were all that great, honestly).
If you do this for breakfast, do a later time(closer to 11am) and you'll be having a "brunch". This can help save money, and its also not quite as crowded.