Source: dadsbigplan.com
2. Magneto
(X-Men, Marvel Comics)
Oh, Magneto. Magneto, Magneto, Magneto. Such a character to have to discuss. One week he was helping the X-Men save the world, the next he was a literal genocidal fascist who wanted all humans dead. He struck a delicate balance.
He started as a dyed-in-the-wool supervillain, but he reformed after Secret Wars II, joined the X-Men, and went to work educating the New Mutants. After years of service with the X-Men, he decided that all he wanted was a little place to call his own and a sanctuary for mutants everywhere.
Since this was a much nobler goal than “genocide all the people who can’t shoot lasers from their face or whateverâ€, people helped him. Oh, he also went back to being a terrorist. That’s true, as well. He eventually conquered the island of Genosha, turning it into a mutant haven ruled by him.
Buuuuuut Mega Sentinels wiped all of that off the face of the earth. And then Magneto died, came back, lost his powers, joined the X-Men, got his powers back, died again, and became a world renowned murderer again. See what I meant about him flip-flopping all the time?

