Ultimecia's Castle seems to be the favorite

My one disappointment with it was Ultimecia herself, not the boss battle which I think is good but rather her personality and the way she talks. The vibe you get from the castle is that of the abode of a very fluent, classy and sophisticated woman. Edea fit that image to a T and even the way Ultimecia carries herself through Edea reflects and evokes that. But for some reason that goes out of the window when you finally meet her at her throne and she has this "brutish" manner of speaking (bad translation, perhaps?) that she seems a bit out of place there (yet during her last moments when she begins talking during her last form she speaks as you would expect her to). It took away a bit from the great atmosphere the castle had.