I think most would also include Astarion in that list because he has by far the most voice lines and camp scenes. Though I feel in his case most of the writing effort was put into his side the dialogue and not into the player's side of it. In his case I often get the feeling the interactions serve to show him as a character and not the relationship between two characters. Maybe that's also a reason why the epilogue content for him when romanced is so thin.
