1. Doomsday
He is a deadly monster and he has few feelings, mostly of hatred and destruction. On his way to erase other worlds he found Earth and his first opponent, Superman.
While other villains rely on technology and intellect, Doomsday has the advantage of a physical form that can really challenge Superman himself.
He defeated the Justice League in minutes with one hand tied, and ultimately he murdered Superman. His powers and abilities are various, making Doomsday a real threat to everyone else. He is invulnerable to Darkseid’s full Omega Effect and he is able to heal from anything. Conventional damage and ordinary injuries do not reach him.
He has an undefined superhuman resistance, so whatever his opponents try, they don’t know if it will affect this creature. His only purpose is to defeat anything and anyone in his way and his superpowers sustain his goal.
