1. Light – Death Note
Light murdered countless innocents and justified his actions by adhering to the philosophy of the ends justify the means.
The guy is a stone cold killer. He’s also completely unlikeable.
As far as power goes, Light doesn’t possess any inherent abilities, sure, but the guy can write any name he chooses in a notepad and that person later dies.
That’s true power.
2. Madara Uchiha – Naruto
Madara Uchiha is the type of villain who may be prone to lose his cool outside the battlefield, but when he engages in battle he enters a trance-like state and allows his expertise in combat to supplant any potential mental shortcomings.
He even took on hundreds on opponents at once and easily dismantled them despite an unrelenting barrage of attacks coming from every angle.
He also wields the power of Susanoo, a spiritual power that fights on the user’s behalf, and even manages to achieve Complete Body form, providing him with added agility and control of the Susanoo.
3. Blackbeard – One Piece Blackbeard – One Piece
Blackbeard is a stout and towering beast of a man who claims to be the most powerful pirate of them all, and he makes a compelling argument.
He’s a selfish and sadistic leader who infamously displayed his evil nature when he recruited the most physically gifted prisoners by making them fight each other to the death.
It’s a near impossible task to inflict critical damage on Blackbeard because he possesses two Devil Fruits, which grant him the special abilities of controlling gravity and creating earthquakes.
He is the only villain who simultaneously wields the powers of two Devil Fruits, making him a formidable foe for Luffy and friends.