Nah, I'm a Weigraf fanboy. Personally, my top 3 Final Fantasy villains are as follows, Weigraf, Kuja, Sin, and then Sephiroth as a distant fourth. Though I believe Sephiroth to be the strongest Final Fantasy villain.
Kefka did not destroy the world, he damaged it heavily. That's why it's called the World of Ruin. And instead of calling me a fanboy how about you try to refute my arguments with logic? Otherwise it's just poo slinging. Even so, Kefka did not succeed, (partially) as a result of his own strength, intelligence, planning, or ability. He simply capitalized on the mistakes and plans of other characters, mainly the heroes. The heroes had 3 chances to stop him before he took control of the Warring Triad. The first chance was their second major encounter with Kefka, at the battle for Narshe. Kefka made a huge mistake in underestimating the strength of the heroes. If you recall, after his forces are routed, he is defeated in combat. After the battle he simply runs away. He had no escape plan, the heroes let him escape because they were too stupid to chase after him. I doubt he could have gotten away from Sabin on foot, but the heroes were too concerned with making sure Banon and the Esper were safe, a task that hardly required the attention of everyone involved. Their second opportunity to stop him was when Gestahl invited the heroes to dinner in an attempt to bargain. He asks the heroes to open the door to the world of the Espers so that he can meet with them in an attempt to surrender and broker a peace treaty. This is an obvious ploy, yet no one in the party expresses even a small reservation about letting the Empire into the Esper world, despite what they witnessed at the Magitek research facility when they saw Kefka torturing Ifrit and Shiva.
While it would have been an indirect victory, if the heroes had told Gestahl to piss off, Kefka would have never had the opportunity to seize power. The third and final failure is the heroes did not arrive in time to stop Kefka from taking the power of the Warring Triad. A situation that almost perfectly mirrors that of the final events of FF7, where the heroes are attempting to reach Sephiroth in the Northern Crater before he can attain ultimate power. The only difference there between Sephiroth and Kefka is that the heroes Sephiroth faced arrived faster.
Hell, Kefka and Sephiroth even have similar backstories. Kefka is the first magitek knight, and since the process wasn't perfected when he underwent it 16 years before FF6 it destroyed his mind, making him crazy. Sounds an awful lot like the SOLDIER program to me. Kefka and Sephiroth are practically the same character. I see them as two sides of the same coin. Kefka embodies the madness and cynicism of evil, while Sephiroth embodies the cruelty and manipulation side of evil. Funny thing, Sephiroth gets all the hate for being the emo one, but it's actually Kefka that's emo, he simply doesn't show it. Sephiroth comes to terms with his own evil eventually, and goes back to his old calm and calculating self. Kefka hates himself for what he's become. That's why he wants to destroy everything, he tries anything he can to make himself feel better, to get rid of his eternal sadness for the life that he lost. The truth is, that whenever Kefka laughs, it's a laugh of sadness.
Concerning their combat capabilities, while Kefka was a powerful magitek knight, he lacked in actual combat experience, and was likely too crazy to learn anything valuable from it anyway. Kefka isn't part of standard military forces, so it's likely that he wasn't deployed to the front lines for the majority of the 8 year war between the Gestahlian Empire and Doma. Sephiroth on the other hand, along with Genesis and Angeal were deployed to the front lines of the Wutai war for 10 years, where they were repeatedly used as shock troops for the most dangerous missions.
Terra is very powerful, but she's not an Esper, she's half Esper. And even so, while Espers/Eidolons/Guardian Forces/Aeons have been shown to be extremely powerful, they're not invincible, and in virtually all cases the heroes surpass them eventually. Terra's Esper form, while an amazing ability, is simply a Trance. It's the exact same ability employed by all characters in FF9. And the characters of FF7 are hardly normal people either.
If anything, Terra was not shown to be as strong as Cloud or the other FF7 heroes. She did after all lose to Humbaba and only lived because Celes and the others saved her. And aside from battles with extremely powerful monsters like Kefka, she never does anything that just screams superhuman. And it's hard to base strength purely off gameplay. With the FF7 heroes, we get a very clear picture of how far they've come with the battle against Diamond WEAPON, as the power of his diamond flash is shown both in battle and in a cutscene when he destroys the Shinra building with it.
So, do you have any logical arguments to refute my claims, or are you just gonna call me a fanboy again?