Definitely FFVII. Shinra and Sephiroth are, for me, streets ahead of the rest of the series when it comes to villainy. If anyone were close, it would be Kefka, but he's just not that close.
FF1 (Four fiends, Pirates, Garland/Chaos)
FF2 (Emperor Mateus, Leon, The Empire, Lamia)
FF3 (Hein, Goldor, Xande, Dark Cloud)
FF4 (Baron, Kain, Golbez, Four Fiends, Zeromus)
FF5 (God damn Garula, King Tycoon, Queen Karnak, X-Death, Gilgamesh)
FF6 (The Empire, Gestahl, Ultros, Kefka)
FF7 (Don Corneo, The Turks, Shinra, WEAPONS, Jenova, Sephiroth)
FF8 (Edea, Seifer, Galbadia, Adel, Ultimecia)
FF9 (Alexandria, Brahne, Black Waltzes, Lani, Zorn & Thorn, Beatrix, Kuja, Garland, Necron)
FF10 (Yevon, Seymour, Jecht, Yunalesca, Sin, Yu-Yevon)
FF12 (Archadia, Ba'Gamnan, Dr. Cid, Gabranth, Ghis, Bergan, Vayne)
FF13 (Jihl, PSICOM, Cid, Yaag, Barthandelus/Dysley, Orphan)
Definitely FFVII. Shinra and Sephiroth are, for me, streets ahead of the rest of the series when it comes to villainy. If anyone were close, it would be Kefka, but he's just not that close.
Bow before the mighty Javoo!