[KRX]

Kamen Rider Kuuga through Kamen Rider Decade: Spider Fangire. Need I say more?

Kamen Rider W through Kamen Rider Wizard: Nasca Dopant. Now let me explain.

A villain is an agent of evil. Kirihiko was never really evil. He was more like a noble drug-dealer—giving out his product because that's what his higher-ups wanted. However, he had morals and guidelines—he would never give out Gaia Memories to children, and only to adults who wanted them. He was a good-hearted man doing evil things, and in the end, he repented. He wasn't a villain by nature—he was just on the villainous side. So, compared to everyone else, he is the worst villain, because he never was a villain.

Although I did hate Weather. A lot.