Something quick in our room gets us out the door and on the rides or into the shows more quickly.
The only breakfast I think is worth your time and money is Tusker House. Make your reservation for a time before the park opens and they will usher you back to the restaurant early. By the time the crowd makes it's way to that corner of the park you can have FPs for the safari in hand, be enjoying their wonderful breakfast, and your kids will have had Mickey, Minnie, Donald, and Daisy come to them for pictures!
The food is great, the entertainment is fun (although I miss the water guns from the old breakfast), you get into the park early, you don't wait for the KS, and you don't have to wait in line at Toon Town to see Mickey and the gang!
To me, that is all more than worth the cost of the meal!