Which vampires are the most powerful?

[BloodyRain]

So, what are some badass vampires you can remember. They can be from anything, manga, anime, tv, movies, etc! What are some others?

Alucard-Hellsing Ultimate

Female Form

Seras Victoria-Hellsing Ultimate

Niklaus Mikaelson-Vampire Diaries

Elijah Mikaelson- Vampire Diaries

Selene-Underworld

Cadis Etrama Di Raizel-Noblesse

Akabara Strauss-The Records of a Fallen Vampire