Will you have a car? The Hilton has a self-park option for $13/day. The WA has valet only, and I don't think WA guests can use the Hilton's self-park.
Kids eat free at the Hilton Bistro buffet, but adults are $19 each. Good price if you have kids, not so good IMO if you don't, but I'm cheap like that

. I either ate in my room (brought stuff with me, got half-gallon of milk at the Contemporary) or at a park. A pint of milk at the Hilton in the Bistro gift shop was $3.26! A half gallon at the Contemporary was the same price. I tried to get it at the Poly when I went there for fireworks, but they were out, so I got it the next night when I left MK (stopped at Contemporary on the way to the TTC to catch the Hilton shuttle).
If you have no car, you could take the shuttle over to a WDW park and head to a resort to eat breakfast. But, you must try the huge cinnamon rolls at the Hilton in Muse! Oh, mylanta!