For any restaurant, you will have lovers and haters. If you are going for those characters (the Fab 5), CM is a great place to see them. B-fast food is hard to mess up. It's typical b-fast fare, nothing special, but decent food.
To answer your question, Ohana has a character b-fast with Lilo Stitch, Mickey and Pluto. Food is served at your table. Much more limited menu, but you don't have to get up for the buffet either.
1900 Park Fare has Mary Poppins and the Mad Hatter. Not sure if other characters are there. It is a buffet.
Cape May at the Beach Club has Donald, Minnie and Goofy. Traditional b-fast buffet food.