Strongest Move on any FF game

They did that first in FF6. Setzer had the Slot attack, and one of the attacks he could use was called Joker Doom. It instantly killed everything on the screen, including your party.

Strongest in order:Setzer, Cait sith, Selphies "The End", Quistis's Degenerator, Wakka's Attack Reels(with full attack, and world champion), Squall's renzokuken with Lionheart, Zell's combo limit(full attack, with last weapon) - heal drop, then beat rush over and over, Cherry blossom, then Omnislash.

Eh, I'd say Knights of the Round, FFVI... Damage wise, it does 129,987 HP damage. If you don't consider that a move, but rather a spell, then I don't know, since I haven't played all the FF's.

Actually, with the right Materia line-up, you can mimic the spell, and do twice that, or 259,974 HP damage, which is done to all your enemies on the screen (Or so I believe it does...).

One sweet thing about Wakka's Overdrive Attack Reels though is that it hits 12 times with 99,999 so that's 1,199,988 damage if it hits one enemy. Plus if you have auto-haste, and triple overdrive, on rikku, you could use her overdrive, mix and create Eccentrick, which is x2 overdrive up, then autohaste on Wakka, with triple overdrive, with the overdrive that goes up every turn, technically he can cause 1,199,988 damage every turn(with the auto-haste, and eccentrick). It's great for an easy Nemesis battle, on FFX. Also note that Quistis's Degenerator gets rid of any single enemy with one hit(easiest way to beat marlboro on FF8).

And one thing that pisses me off on FFX is that Anima, doesn't take off more than 99,999 when he hits the enemy like 25 times, and literally tears them apart. Also the Magus Sister's Combined overdrive is way too overrated. IT SUCKS COCK!

What about kuja's Ultima attack...he whiped out a whole planet with that.

I think Omega is referring mainly to the amount of damage caused by an attack in battle, and Kuja's Ultima attack dropped all of your characters down to 1HP, if I remember correctly. There are certainly more powerful attacks than that. Few that are cooler, but certainly a lot that are stronger.

What about kuja's Ultima attack...he whiped out a whole planet with that.

Now if you want to talk about destruction, Sephiroth's apocalypse, or Ultimecia/Griever's move Great Attractor, eliminates four massive planetoids, and Earth. Also I though a really sweet move was the enemy skill, Pandora's box from FF7. You get it from the Zombie Dragon in Sephiroth's Crater.