I'm not sure about the rest of you, but I grew up in a very religious home. One where it's undebatable if there is a God or not, and that if you do not believe in one your just in denial.
So, apparently I've been in complete denial for 5 years. Oh the wonders of Atheism and the modern religious family.
Anyway, I was taught that the Devil was the worst person in the universe, and that if nothing else I must understand that he was the cruelest monster in existence. But, even if he was real, I don't think of him as the cruelest.
Murderers, rapists, pedophiles, hypocrites, thieves, cheaters, etc. They're the real monsters. Not Satan, or Lucifer, or god. (Little g meant Lucifer in the Bible, I believe)
He just wanted to make his own path...shouldn't that be admirable? I don't know. Do you guys wanna list any true monsters that you consider to be the cruelest beings in existence?
For me, the cruelest monster is Religion.