The one that had the last laugh is what matters.
as far as people thinking of sephiroth as a god thats false. he wanted to be like a god. his idea was to make meteor hit the earth so the lifestream would rush to a certain spot and sephiroth would go there and somehow become more powerful. i forget how if there was even an axplanation of how.Sephiroth: It's simple. Once the Planet is hurt, it gathers Spirit Energy to
heal the injury. The amount of energy gathered depends on the size of the
injury. ...What would happen if there was an injury that threatened the very
life of the Planet? Think how much energy would be gathered! Ha ha ha. And at
the center of that injury, will be me. All that boundless energy will be mine.
By merging with all the energy of the Planet, I will become a new life form, a
new existence. Melding with the Planet... I will cease to exist as I am now...
Only to be reborn as a 'God' to rule over every soul.