I've watched a few. My problem with these series was that either the main character chose a guy I didn't like, or she didn't choose anyone at all and spent time with someone different in every episode – a sort of encouragement to play the actuall game, I suppose. I watched Hakuouki, Amnesia, Uta no Prince-sama, La Corda D' Oro, Brother's Conflict and Angelique. And i really, really love Neo Angelique Abyss!