Haven't listened to the playlist yet but Flight of the Conchords is an early favourite for my Billy vote. An utterly predictable and obvious bote-whore. (Knowing this crowd, it will probably win.)
Mildly amusing the first couple of times I heard it, but it doesn't retain much replay value for me. Hardly comedic gold and not exactly a great song. Also a bit pointless without being able to laugh at Jemaine's funny face. (Loved the show, BTW, but short of you-tubing the odd clip, I wouldn't bother listening to their music.)
No doubt, people will give it votes for name recognition and lol-nostalgia reasons, but I prefer to give my votes to the good songs or nice surprises.
I'll keep an open mind when I listen to the album version. Maybe I'll be blown away by the musicality, or maybe I'll discover extra layers to the humour which I hadn't previously considered.