I'm not too fond of the way you presented the shows in your poll, making fun of the ones you didn't support and praising the one (24) that you did.
Anyway, Buffy is my favorite show. It's rough around the edges sometimes, but always powerful and touching and very well written.
I used to like Dark Angel, but it has gone all X-men on me this season, and I'm getting tired of Max's frustrated love life--it was old last season, now it's just reeking.
Smallville is very promising. If they can pull away from the "monster of the week" syndrome (something Buffy can pull off successful because of its supernatural theme but seems out of place in a small town like Smallville), then I think the show will do quite well. This week's episode was very good.