Kefka is just pure evil he deserves the title "Best Villain".
Sephiroth comes second because he destroys a whole village if i remember correctly but his power is enhanced genetics so without them he would be a mediocre villain.
Werent the Light Warriors FFIII also know has Warriors of the Light.
And for the DQ Slimes to be Enix's mascot(or used to be mascot) they must be a good villain.
End of 2014 Hardware Predictions (03/03/14)
PlayStation 4: 12-15million
Xbox One: 7-10 million
Wii U: 8-9 million (Changed 01/04/2014 from 7-9 --> 8-9 million)