Despite not following villains as much as I follow heroes, my favorite Pure Evil Villain is Infinite.
Imma say either Reverse flash or Aizen
Properly Lotso from Toy Story 3.
Emperor Palpatine; a man completely devoid of any morality.
Oh! I know! It's deadly (Muppets)!
Leaning towards Vitiate.
I love a lot of villains who are Pure Evil, but I'm gonna go with Albert Wesker.
Bill Cipher
Utrom Shredder
Commander Rourke
Stu Macher. “You fucking hit me with the phone, dick!”
What do you think?