5. Kefka Palazzo (Final Fantasy 6)
No matter what anybody says, Kefka is the greatest bad guy Final Fantasy history. While most antagonists in the Final Fantasy games aim for world destruction or domination, Kefka actually manages to acheive his goal and destroys Earth. Anyone who mercilessly destroys planets tends to be a bit of a prick. A master of magic and mayhem, Kefka was originally an Emporer's mage before finally revealing himself to be an evil mastermind. Kefka is known for his unique visual style as well as his awesome laugh. He also has some of the best quotes in any game I've ever played such as:
Read my lips - mercy is for wimps! There's a reason "oppose" rhymes with "dispose"...If they get in your way, kill them!" Kefka is, as far as villains go, kind of awesome. However, being awesome doesn't mean you get to destroy the world, jerkhole.