Did you prefer Cecil as a dark knight or a paladin?
While I liked his abilities as a dark knight, especially "dark" when you would come up against a bunch of weaker enemies it would be a quick kill, I'd have to go with paladin. It was nice to have him be able to cure when you didn't have Rosa part of your party. I also used his esuna so I wouldn't be wasting Rosa's mp. Also, this will sound shallow, but I think he was cuter as a paladin because you can see his face in the menu.