Two Doomosdays fighting to the death

In an alternate story as Doomsday gets his complete form he sees a glowing portal opened in front of him and out came was Giga Doomsday from another time paradox and it came clear these two will have to fight to the death to prove who's the strongest doomsday by fighting to the death.

And so the epic battle begins in shatterspace.

Who will become the victor?

Final Form Doomsday & Giga Doomsday (C)