Originally Posted by Young Superman
In my opinion, one of the things John Byrne and DC got right was restoring Superman's uniqueness as the Sole Survivor of the dead planet Krypton. Unfortunately DC had to go and ruin it later, by bringing back Kara Zor-El, Zod and several other kryptonians.
I always look at it like this... Superman can still be the last son of Krypton because in my mind, Zod and Co. come from the Phantom Zone so they survived by default, Supergirl is still the biological matrix and Conner Kent (Superboy) is a clone from Superman's DNA.
That is the continuity that I will follow until I die.