I agree.StriderShinryu said:Probably Kefka. There's not even a real reason for him to do what he does beyond it just being fun. There really isn't even any easily pushed aside personal desire or belief.
-Making the world into an apocalyptic cesspool full of dangerous beasts
-Having yourself be the undisputed murderous god of the world
-Poisoning an entire kingdom
-Manically ordering a solder to wipe sand off of his boots
Doing all of this just for kicks and giggles.