Well, for starters, vidding anything to Eminem means that the first viewing isn't a viewing at all; I literally stopped watching the vid and just listened, trying to grasp the complexity of the lyric.

I can see that as a problem for some people, but I knew the song, so I didn't have any problem parsing the lyrics.

I'm not convinced Veronica Mars is more a single protagonist show than BtVS or BtVS more an ensemble than Veronica Mars, but that doesn't help, because the cast parallels should be Veronica = Buffy and Logan = Spike/Angel/Riley, depending on how you read Logan. But in any case, it's not clear why particular characters were chosen.