Why is Lex evil
Smallville has done an awesome job showing everyone how Lex became the way he is. From a sweet boy caught in a meteor shower to a brutal tyrant trying to take over the world with his unholy army of the night.
So why specifically do you think Lex is so evil?
Is it because of his evil father. Who for some reason has become the hero latley. (oooh he just pisses me off)
Or is it residual energy left over from Zod. Being that he did get much darker after his possesion by Zod.
Or is he simply a sociopath. That he was just born destined to become this tyrant, and he has been all along.
Or a combination of all three.
Personally I think it is a combination of Lionel and Zod. Even to this day Lionel is still a bastard when it comes to Lex. He doesn't admit for even a second that the way Lex is now is exactly the way Lionel raised him to be. Now that he's become Alexander the great Lionel is unhappy... STILL
But I also think that Zod had something to do with it. When Clark removed Zod I think that some left over energy was left behind mingling with Lex's own energy, creating a darker more powerhungry Lex. Either that or Lex remembers everything that Zod did, and liked it.