The Monstrous Weapons of Final Fantasy

No way. With proper leveling up (not even max stats) and break damage limit, the weapons in X are complete pushovers. Even in my No Sphere Grid game, these guys were simple. The only incarnations easier are the random encounter versions in X-2.

Let's see if I can remember all of the games I've beaten that feature these two.

There's Atma Weapon in VI (the Atma being a mistranslation for Ultima, I believe I heard somewhere). He wasn't horribly difficult, but I don't remember him being super easy, either.

Ultimate Weapon in VII was easy. You only mentioned Ultima and Omega in the intro post, but if you're interested in anything with Weapon in the name, I'll say that Diamond was easy, too, but Ruby and Emerald were both a challenge for me, though not impossible.

Ultima Weapon in VIII is a pushover too. Getting through the Deep Sea Research Center was harder than fighting him. Omega was a nice challenge, though once you pick up on his attack pattern, he becomes fairly easy too.

I already mentioned my opinion on the ones featured in X and X-2.

And then there's Omega Mark XII in FFXII- easily the hardest of the weapons. I felt like this one really was almost impossible, even at high levels.

 

Sort of, but he's focusing on the two Weapons here. Any other superboss could be discussed in more detail in the other thread- if it weren't bumping to post in your thread.

 

I forgot about Nemesis- I guess he'd fall into this category. So would Penance, I think, though since I don't have the International version of X (unfortunately), I've never been able to fight him.

And I would say that Nemesis is not harder than Ruby or Emerald. For one, the way the battle works, you can easily swap in Yuna with an aeon shield at the last minute so you can avoid taking damage from his attacks. But even if you didn't want to do that, with decent stats (mine were all around 190, I think) and break damage limit, if you teach all of your characters Quick Hit, you can basically kill him before he even gets a turn. He's another one where the getting to him is harder than fighting him.

 

^ And so? A lot of the monster arena bosses do that. It doesn't make him any harder. Auto-Phoenix in your armors if your stats are too poor to survive an attack will take care of it. I don't remember him counterattacking very often, although maybe I'm mistaken. Regardless, it doesn't change the fact that you can still quick hit him to death extremely quickly for being the ultimate boss of the game.

 

Possibly he can, though I can't remember him being the sort that counterattacked much at all. I do know that the times I've beaten him, if he has in fact counterattacked a quick hit, it never KO'd my characters. Auto-potion would have taken care of it right away. It doesn't really matter much- I still know that when I defeated Nemesis, my thoughts were that it was a disappointing fight.