@Acciocookies Do I look like I'm joking?
Tbh it did.
You also did not specify from a plot perspective, which caused us to assume you meant moral wise.
Anyways, if we're going from that plot perspective, let's give angela some credit where it's due. she allowed us to see how difficult life was going for el without her powers. the vicarious humiliation i felt when el attempted to use her powers on her was just awful. she initiated a bullying act in rinc-o-mania, which put a dent in mike and eleven's relationship, allowing them to grow more after. el blatantly lied to mike about how many friends she had which spiralled into a fight between the pair. then, when she hit angela, she was arrested, and while being transported, owens took her from there.
Of course vecna is going to push the plot forward far more being a main protagonist, brenner began the plot in the first place, billy gave max more depth and jason didn't really do much wrong. angela is a far too insignificant character to even compare to them.
And angela is supposed to be an extremely hated character, that is her purpose. so it'd make sense for people to vote her as the worst one, especially when it doesn't specify from a writing pov.