Everyone raves about the Sunset Grill's breakfast buffet, can't wait to try it myself in 2 weeks. (was it Hard Rock Cafe you were thinking did the breakfast?)
In CityWalk, Pastamore' has a nice & simple little egg & sausage plate pretty inexpensive. Great people-watching place too. You can guage the percentage of how many hit IOA, or bear right and head to USF.
Also, consider the beauty of room service too! Nothing like a no-line, no-wait convenience!! (oh, sorry, can't use that ad slogan anymore)
Jim