I'm drawn to villains who are evocative of real evils in the world. There are a lot of messed-up people out there, and one always wants to see them taken down. Some of the most frightening are the villains in positions of power and influence who use their position to bully and oppress others. You know, fascists, imperialists, capitalists, racialists, fanatical religious leaders, etc. They have done more damage to world peace and harmony than your average street criminal could dream of inflicting.