WDW, no contest. There's something corporate, obscene, and grotesque about Margaritaville, Hard Rock - you can get that cookie-cutter fare anywhere in the USA (although, to be fair, Planet Hollywood and Rainforest Cafe are just as awful).
If you stay away from pasta and burgers, WDW offers some of the best dining in Florida. I'm thinking specificaly of Citricos or Californira Grill or Flying Fish. These restaurants employ chefs who create daily specials prepared with the freshest ingredients. Citywalk offers nothing comparable.
Having said that, I've eaten lousy food at Epcot and MK too, so Disney is far from perfect.