[quote=Archangel89]
After a great deal of consideration I think I'm going to try my hand at Kon-El. The only question is how to make him unique?
[/quote]

Maybe he's the son of Superman from an alternate reality/future who's his mother Kon-El's powers could be weaker (if he had a human mother like Lois or Lana) or different (if he had a superhuman mother like Wonder Woman, Starfire or Maxima) from Kal-El.
Being raised in a different country or a different world would obviously effect is background, personality and beliefs as well.