Ohana brkfst is one of our favorites. The characters are Mickey, Pluto, Lilo & Stitch. The atmosphere is more relaxed & calm than any other character brkfst except for Cape May Cafe. The food is served to you family style and is pretty good. It consists of standard brkfst fare: sausage, bacon, eggs, mickey waffles, biscuits, warm breakfast breads, fruit & juice. At some point during your meal, the characters will lead a parade around the room for kids who can play maracas. The character interaction is very good - Stitch & Pluto can be especially entertaining.
We also love Chef Mickey's brkfst & we usually do both on our trips. Chef Mickey's has a very nice buffet selection w/good food. The characters are Mickey, Minnie, Pluto, Goofy & Donald and the character interaction is pretty good. Chef Mickey's has a fun/open atmosphere - at some point, an upbeat song will be played & the characters dance around waving napkins - the customers are encouraged to wave napkins as well.
Whichever you pick, I don't think you will be disappointed.