The Megalomaniac is the most prestigious of super-villain classes. If anyone is ever going to rule the world, it will probably be you.
Your main goal in life is power and domination, you have the tools to do it, and you know it. Megalomaniacs are intelligent and forceful, and they tend not to let their emotions cloud their judgment. Most of the time. They are usually found, or not found, working at the top of a huge structured organization, though many prefer to work by themselves.
The Megalomaniac has but one flaw, but its an invariably fatal one; arrogance. He knows that he can take over the world, and he isn't afraid to let you know, often elaborately and in great detail. They often do not foresee the fly in their ointment, because they do not want to admit that such a fly could exist.
Sample Megalomaniacs: Dr. Doom, Lex Luthor, Ras al'Ghul, Kang the Conqueror, Emperor Palpatine, Brain