I like her mostly because of the one episode with The Mountain Goats.
Also, guys, I'm not so totally sure about this, but I think it might be important that Beth be killed off, because she didn't exist in the comics. So at this point in the show, Maggie is like, totally alone (except for Glenn). This is how it has been in the comics for a long time. Now, I'm just theorizing here, but I suspect that Maggie is going to do some major ass-whooping in the rest of the season, because of Beth's death. And that is not something that should be invalidated by bringing her back.