Well, you have four votes. I loved Firefly, but it's hard to say that it's more deserving than all of Star Trek, or Babylon 5.
Firefly was really good, but it was also really short. Even with Serenity and the comics, we got a very brief flare-in-the-night-sky view of that universe. It was well fleshed out for what time they had, but... Anyway, Kaylee is apparently a new regular on Atlantis, which is good.