If you ask Lost fans to name their four least favorite characters they will probably say Kate, Shannon, Ana Lucia and Nikki. Three of them have been killed off. The only reason Kate hasn't is becasue they need a "female lead". I think the producers made a huge mistake introducing Charlotte the way they did (hitting people in the head), given how prejudice tv viewers generally are against female characters. Maybe they just can't write for women? Sunn and Claire hardly feature and even Juliet was nearly ruined by the latest episode.