I can't speak from a female perspective, but Zevran, Alistair and Thane are probably some of my favorite characters in... anything.
Zevran is not only a sharp wit, his strangely optimistic cynicism is hilarious and refreshing. I found myself agreeing with him more then any other party member because me and him were both just trying to have some fun. But there's a lot of humanity and pathos lurking behind the scenes. He's not only a great laugh, he's honestly among the most sympathetic members of the party.(Did anyone else notice that both the rouges had tragic backstories, and that they were both bisexual?)
Alistair is also sympathetic, but for different reasons. It seems like his entire life has been planned for him, and that he eventually just learned to go with the flow, which makes the twist regarding his birth all the more bitter with irony. He to seems like a real human being, with real flaws. I really felt like I got to know him, he way he deflects uncomfortable situations with humor, his fear of leadership. Not to mention he's also just really fucking funny, not in the ironic way either, he honestly has a great sense of humor.
And Thane... where do I begin?. You want sympathy, let's have him be terminally ill, not enough?, it is?, TOO BAD!, he's also filled with regret, over his kid, and blames himself, with good reason. Are you crying yet?, good. Now let's make his philosophy really engaging and interesting!, oh, and really fucking depressing on top of that, oh and not depressing in a "I'm sorry you think that way" kind of depressing, that's for pussies. No it's more like "I hate how much sense you're making" kind of depressing, you know, the kind of depressing you carry with you for the rest of your life, which makes sense, really.
I like Thane a lot