I have watched all the romances and done 3/4 of the female romances ( so I'm playing a male ) I think that Vette was the best because it felt natural and I liked how this prince like villain falls for a lowly slave girl. Most disagree with me on this but I think Nadia has the 2nd best. You know her through most of the game and I like that it is the only mentor-apprentice romance that doesn't feel like its based only on physical attraction. And the worst is jaesa because it is only attraction that never feels like it connects to love