most powerful FF villain.

['eMeRaLdFaYe']

In my opinion, either Kuja or Necron. Kuja blew up a planet with such ease, and Necron was a force to reckon with.

But they weren't that hard to me. I beat both of them in my first try. ^^

[Rocket Edge]

Sin. They built him up to be too powerful in FFX to be even defeaten. When he was it was kinda like an anti-climax. But, i garuntee if the Sin that defeated the Crusaders & Al Bhed at operation Mi'hen was the Sin i'm talking about, then i can only see him as being the most powerful.

Besides, in all honesty, who could survive this attack. http://www.youtube.com/watch?v=Z5VTTsXIChI

Anyone who could dodge or block the thing. It also seems specially designed to kill humans, oddly enough, since it shoves the water away unharmed, but turns the humans into black particles.

Meanwhile, Sin is harmed by simple cannon fire before he puts his shield up, and his shield is nearly defeated by a laser/lightning cannon, the output of which is piddling compared to the needed energy to kill an entire planet.

Anybody could dodge it? It's going at a great speed, and the result of it completely exterminates anything living in it's path. But lets not talk about this as Sin's only attack, i'm sure he has plenty others with various deadly effects. Other than that, his shield isn't 'nearly' defeated by simple cannon fire, hell all he had to do was power up the shield at will to destroy the Al Bhed weapon.

And the cannonfire? There were hundreds of cannons firing at him and all he had to do was put up his shield. Could you imagine Sephiroth or Ultimecia up against that? You can't because it would be an annihilation. Also, it would seem now that any weapon couldn't get past sin's shield. So lets resort to magic. Well, that's what the Al Bhed's machina seemed to be, a blast of energy of some sort. With massive ammount's of HP (for size) & power, Sin in my opinion is the strongest.

Besides everything he could send in some sinspawn & other little cretures from it's body to serve as a distraction in battle to turn it quickly to his advantage.

[The Crystal]

There were hundreds of cannons firing at him and all he had to do was put up his shield. Could you imagine Sephiroth or Ultimecia up against that?

Safer Sephiroth and Final Ultimecia? I can imagine.

[Ryushikaze]

Sin. They built him up to be too powerful in FFX to be even defeaten. When he was it was kinda like an anti-climax. But, i garuntee if the Sin that defeated the Crusaders & Al Bhed at operation Mi'hen was the Sin i'm talking about, then i can only see him as being the most powerful.

Besides, in all honesty, who could survive this attack. http://www.youtube.com/watch?v=Z5VTTsXIChI

Anyone who could dodge or block the thing. It also seems specially designed to kill humans, oddly enough, since it shoves the water away unharmed, but turns the humans into black particles.

Meanwhile, Sin is harmed by simple cannon fire before he puts his shield up, and his shield is nearly defeated by a laser/lightning cannon, the output of which is piddling compared to the needed energy to kill an entire planet.

Anybody could dodge it? It's going at a great speed, and the result of it completely exterminates anything living in it's path. But lets not talk about this as Sin's only attack, i'm sure he has plenty others with various deadly effects. Other than that, his shield isn't 'nearly' defeated by simple cannon fire, hell all he had to do was power up the shield at will to destroy the Al Bhed weapon.

And the cannonfire? There were hundreds of cannons firing at him and all he had to do was put up his shield. Could you imagine Sephiroth or Ultimecia up against that? You can't because it would be an annihilation. Also, it would seem now that any weapon couldn't get past sin's shield. So lets resort to magic. Well, that's what the Al Bhed's machina seemed to be, a blast of energy of some sort. With massive ammount's of HP (for size) & power, Sin in my opinion is the strongest.

Besides everything he could send in some sinspawn & other little cretures from it's body to serve as a distraction in battle to turn it quickly to his advantage.

Let's see: No limits fallacy "Nothing can get past its shield". The Al Bhed Cannon nearly broke through. The Airship cannon took his arms out with a single shot each.
Also no limits fallacy on the shockwave attack. Who can dodge it? Who can fly? It's easy enough to see coming.
And yes, his shield blocked the cannons. But he doesn't always have his shield up, and when he didn't, those cannons pitted him good.
Also, there's a grand appeal to ignorance with the "I'm sure he has plenty other deadly attacks"

Kuja outclasses Sin in nearly every relevant category. Heck, Kuja might immediately realize Sin for what it is and capture him with the Invincible. Or he might use the output that glassed a planet and tore a hole into the collective unconscious and, y'know, kill Sin and Yevon inside it.

[manashima]

wasnt their pitcures or Terra and Gaia in memoria? Terra was almost as big as Gaia IIRC. Why would he be able to destroy Terra but Not Gaia? Especially when Gaia was already being weakened by Terra.

[Forsaken Lover]

A lot of people do like to bring up that argument. To answer it, I give you a quote from Kuja himself:

Kuja: "It's the original crystal... This is where it all began..The birthplace of all things..Once I destroy it, everything will be gone."Gaia, Terra, the universe, everything.. Your lives and memories, too, of course. HA-HA-HA-HA-HA-HA-HA!"

And then Necron:

""Kuja was a victim of his own fear. He concluded he could only save himself by destroying the origin of all things - the crystal."