And Sephiroth taking away having become one with Jenova can't beat Ganon.
Applying either one for the sake of argument of one's point is a fanboyishly biased motion.
And for the record, Ganondorf says in a flashback that he'll house his power within Zant. Even be it just a fraction of his power, it still seemed sufficient enough to usurp the Twilight Realm and start to conquer the Light World