There are plenty to choose from...
Residence Inn by Marriot Orlando Seaworld
"Complimentary hot breakfast buffets are offered each morning." http://www.resideo.com/us/florida/orland...
Universal Orlando area:
Homewood Suites by Hilton Near Universal
"Other amenities include hot breakfast buffets and manager's receptions with snacks and drinks on Monday-Thursday evenings." http://www.resideo.com/us/florida/orland...
Residence Inn By Marriott Orlando International Drive
"A full hot complimentary breakfast is served daily..." http://www.resideo.com/us/florida/orland...
Walt Disney World area:
Buena Vista Suites
"Complimentary Buffet Breakfast Includes eggs, bacon, cold and hot cereals, bagels, pastries, fruit, juice, coffee, tea and milk."
Homewood Suites by Hilton® Orlando-Ucf Area, Fl
"...complimentary hot breakfast buffet."
Hope that helps!