What is extremely unfortunate about the death of Emet is that he was the strongest representation of the will of Zodiark and the conflict between him and Hydaelyn. However, his sole purpose as a villain was to inform us of this perpetual state of affairs between what is basically a star with multiple personality disorder wherein only one will can occupy the mind at any given time; and Hydaelyn has no plans of resting her control as doing so means countless deaths across the remaining shards. At the very least, I would be very happy that the dev team had a clear goal with Emet that was accomplished, and they succeeded in creating an absolutely wonderful antagonist.

He has definitely set the bar for FFXIV villains, but beating out legends like Golbez and Kefka is a serious subject for debate. However, even as a stand-alone, Emet is a very, very well written character.