On Show (SPN, for those who don't subscribe to our fandom's naming policies—what other shows call themselves Show?), I have my favourites and my least favourites. And there are two kinds of least favourites—a person inside the narrative you hate but is a positive influence on the story, and a person that spoils your enjoyment.
Who are they, on your show?
On Show, you can be a DeanGirl or a SamGirl or a CasGirl, etc as you see fit. I don't know what boys do...It would be cheating of me to call myself a Team Free Will Girl, since that's all three of the above. But I do want to smish them all, together.
But back to the question:
Favourite character on SPN:
Least favourite within the narrative: