Because Brainiac's purpose is to gather all information and then destroy it, "becuase the fewer who have the information the more valuable it becomes" as said by Brainiac in "superman the animated series".
Corey Burton .
Lex Luthor,Darkseid,Brainiac,Scorn.
Brainiac is the notorious space outlaw that shrunk cities such as Kandor and in general went about doing evil and getting into battles with Superman. He (this was revealed much later) is actually a robot or an android- why then didn't Superman destroy him with a blast of heat vision- as this would not be taking life I often wondered about that. Apart from a comic space monkey, Brainiac has no companions. If Superman got him alone with his fields down- why not- Zapp! Lex Luthor is a human being, but Brainiac is not. I often wondered why Superman just didn"t zap him.
Probably just in the pilot episode for "Superman: The Animated Series".
Powers Boothe
June 20, 2006
In the comics, the planet Colu, on TV the planet Krypton, just like Superman does.
superman
Superman died in the fight with Domesday in the Death of Superman storyline in 1992.
usually superman.
Lex Luthor is usually considered the smartest character, at least the smartest on Earth. Brainiac is also considered the smartest character. I would say it's Brainiac then Luthor. Oddly enough both are Superman villains.
Superman