Posting from my iPod.
DOOMSDAY - As my bad guy. He killed Superman for frucks sakes. I still remember the media frenzy, and the collector's editions of the comic book.
Added more from my PC
From
wikipedia:
Doomsday was created in the distant past on
Krypton, long before the humanoid Kryptonian race had gained dominance over the planet. It was a violent, hellish world where only the absolute strongest of creatures could survive (at the time, the world's dominant life-forms were said to be the most dangerous creatures in the
universe).
[3][4] In an effort to create the ultimate life-form, the alien scientist Bertron sent an infant who was born
in vitro to the surface of the planet where it would be promptly killed by the harsh environment.
[3] Its remains were harvested and used to
clone a stronger version of it, a process repeated countless times as a form of accelerated
natural selection.
[3] The agony of these deaths were
recorded in his genes, driving the creature to hate all life.
[3] Evolving, eventually the child was able to survive the hot tempature and rock landscape, only to be quickly killed by the savage creatures that inhabited the planet. Eventually, it gained the ability to return to life and adapt and overcome what killed it in its prior life without the need of Bertron's technology.
[3] "The Ultimate" hunted and killed all of the lethal creatures that then inhabited Krypton, including Bertron, whom he had come to identify as hostile, due to having been "killed" by him hundreds upon hundreds of times.
[3]