Thread:MMYP999/@comment-27109830-20161101225345/@comment-27416494-20161101235417

It's a bit of a complicated scenario, but these sets of fights are all part of one elaborate battle between Xehanort's 13 Seekers of Darkness and the many incarnations of Ganondorf, with various other villains thrown into the mix to fill in empty slots. I've grouped each character together as if they were rivals in a fighting game, though they do share some interesting connections of their own.

Saix and Zant: These high ranking individuals initially appear to be calm, ruthless, and calculating individuals... an attitude that is quickly discarded when they are thrown into battle where they're revealed to be surprisingly wild fighters prone to intense bursts of uncrontrollable rage/tantrums.

Ghirahim and Vanitas: Two second in command villains composed of pure darkness originating from the chronologically earliest games in their respective series. (Ignoring KH X) They show absolute loyalty to their masters, and are perfectly willing to turn themselves into living weapons (Ghirahim is his master's sword while Vanitas eventually comes to wield the X Blade) to help achieve their master's goals. They will challenge the heroes multiple times throughout their respective stories, growing stronger with each encounter until they eventually unleash their true powers in a climactic duel to the death.

WW Ganon & Ansem: Though hardly the strongest incarnations of the two villains in question, their individual goals were still a large enough threat to the world at large, in which they would kidnap maidens of pure light in order to unlock the way to Sunken Hyrule/Kingdom Hearts. They are also closely associated with two "Guardian" like entities that can freely assist them in battle. (Those being Phantom Ganon and the Guardian Heartless)

Yuga & Xigbar: These villains are known for their cunning manipulations of friend and foe alike, even tricking the hero into unknowingly furthering their master's schemes... With that said, their loyalty to their superiors is questionable at best, an attitude best exemplified by their "cowardly" fighting styles. They'll use their unique manipulations of space to remain outside their foe's reach while pelting them from afar with devastating magic.

Demise & No Heart: This is pure speculation on my part, but I'm willing to think these two are the absolute strongest members of both teams, and a duel between them would be the perfect way to end the battle at large. Though large and imposing, these incarnations of pure power were ultimately defeated by the heroes in the earliest points of their franchise's history (though canonnicaly, No Heart was merely an Arena boss), though the remnants of their dark legacies still remain to haunt the chosen warriors of light to this very day.