We just got back this week. We ate at Mythos twice, excellent both times. Had a very good meal at Confisco's also. If you are looking for dinner be careful if you decide on Mythos they closed early when we were there and had to have lunch once and a very early dinner the second time. Margarittaville is a fun atmosphere for dinner and good food also.
At Portofino there is a wonderful restaurant called Mama Della's. I cant praise this place enough! We also had a terrific meal at Jakes in the Royal Pacific. As far as breakfast if you want a big full breakfast give any of the resorts a try. We had a quick breakfast almost daily at either bakery in IOA or Universal. They have fruit, muffins, croissants, cookies, doughnuts and good coffee. Pastamore at CityWalk also serves breakfast, looked good but we didnt try it. One morning we had breakfast at Cinnabon in CityWalk...yum!