My three picks for character breakfast:
Garden Grill: Chip, Dale, Mickey, Pluto. They usually get to come around more than once and spend plenty of time with the kids. The restaurant slowly rotates above parts of the Living with the Land attraction. Meal is family style at your table.
Crystal Palace: Winnie the Pooh, Tigger, Eeyore, Piglet. A little noisier than some places, but quieter than Chef Mickey's. Lots of windows and the location is right off of Main Street U.S.A. The Meal is a buffet.
Tusker House: Mickey, Daisy, Donald, Goofy (if it's changed, let me know). Can be very noisy because of the design of the space. Right next door to Kilimanjaro Safari. The meal is a buffet with some African inspired dishes, but plenty of the average bacon and egg type of things too.