Title says it all. List the Wonder Woman villains you think should have sympathetic traits and those you think should not. You can use characters that are already sympathetic or add/subtract sympathetic traits from some depending on how you feel.
Sympathetic
Silver Swan - Whether it's Vanessa, Valerie or Helen, all have similar premises of a young woman being taken advantage of.
Medusa - There's already precedent in her backstory and I'd have her become Diana's friend later on. What they'd do about the Olympians I'm not sure.
Clea - Instead of an Atlantean misandrist, have her come from a family that was wronged by the Atlantean royals in the past.
Circe - I proposed an idea for such a backstory in the thread about Circe as seen here
Unsympathetic
Dr. Psycho - I'd also remove him being a little person. He'd be similar to Kilgrave from Jessica Jones.
Theseus - He'd take Heracles' place as the despoiler of the Amazons.
Assuming they'd be used as villains, Zeus, Poseidon and Apollo.
Veronica Cale - I'm kind of torn between her having some sympathetic traits and her having none tbh.
Anyway, those are my thoughts. What are yours?