I'll be a bit of a dissenter here, I didn't particularly enjoy Kona. I love french toast and Kona coffee, and yet the Kona Cafe didn't cut it for me.
We had breakfast this Sunday at Concourse Steakhouse and enjoyed it quite a bit. The french toast was VERY tasty, the oatmeal received rave reviews from the little one, and the service was super friendly and efficient. Great experience, we'll be returning.
I also give several forks up to Whispering Canyon Cafe. The food isn't gourmet, in fact it's pretty much buffet fare, but the price seems reasonable, the baked goods are yummy, and the atmosphere can't be beat.
Good breakfast can be a bit hard to find...but the list you're gathering here are pretty good bets. Also, even some of the fast-food counter breakfasts in the resort can be good. The breakfast flatbread at Saratoga is made to order, tasty, and satisfying. At some of the moderates, they move enough food product that you may effectively get a made-to-order item.
Happy breakfast hunting.