Could be any antagonist from any RPG
Mine is Albedo from Xenosaga
Dagoth Ur. Easily Dagoth Ur.
Luca Blight. Harle from Chrono Cross is pretty good too, though not a main antagonist.
I don't have a creative or unique answer. It's Sephiroth, and it's not close.
Too many to count really...
For cosmic horror:
Lavos, Nyx, Nyarlathotep, Jenova
For straight up evil:
Kefka Palzaao, ExDeath, Luca Blight, Lucavi, Zanza, Ganon, Kuja (his goal is still largely self-serving), Kandori, Sigma
For Ambiguous/Well-Intentioned Extremist:
Sydney (Vagrant Story), Weigraf, Grahf, Albedo, Krelian, Ramsus, Jedah, Yuriko/Lilith, Big Boss, Emperor Barbarossa, Goddess Myria
True beauty exists in things that last only for a moment.
Current Mood: And it's been a long December and there's reason to believe. Maybe this year will be better than the last. I can't remember all the times I tried to tell myself. To hold on to these moments as they pass...
Kefka. It will always be Kefka.
Honorable mentions to Ganon(dorf), Jenova, Zio, Dark Force/Profound Darkness
I don't count "Ids"/animal-like acting beings as they can't be good or evil and can only have a destructive nature concerning that but nothing intentional.
I. Sephiroth
II. "Baron King" Kuja
III. Master Xehanort
IV. Caius Ballad
V. Maester Seymour Guado
VI. Shadowlord Nier Gestalt
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Phunbaba
Kefka
Sephiroth
Golbez
Garland
Gilgamesh
Ultros
Sir Jecht/Sin
The Arcadian Judges
LeBlanc
Seifer
Edea Kramer #FakeFact Edea & Cid Kramer are the birthparents of Seinfeld's Cosmo Kramer.
How could I forget Ultros?
ultros.png
Don't tease the octopus, kids!
Ultimecia because Time Kompression
I'll have to go with Sephiroth. Kefka is a big contender, but he irritates me so much that Sephiroth edges him out in the end.
At least Sephiroth doesn't have an irritating laugh.
Myria from breath of fire 3.
It is quite amazing how the goddess that we chased for the whole game turned out to be a half naked winged woman with a snake like lower body. Not what I am expecting from a goddess though.
Fou-lu comes to mind. I always appreciated how he starts out as a respectably good character with good intentions, but through dogged pursuit and torment ends up the ultimate villain. I especially appreciate the crap that he goes through, that hex in particular, makes the change fully understandable and less of an instant swap to meet an end. I may be able to think of someone I like more if I really try, but he was the first one I thought of, which probably means something.