First off, by this point in the game, Floor 77, I had already forged the my ultimate swords that I would use the rest of the game. I've come to acquire sacred weapons like Saintblade: Ragnarok enhanced to +15 in Str, and 2 different Prismblade: Exeterna, enhanced to +15 in Str and the other in Dex. On top of that, I'd been given the arcane dagger, bow, and two-handed sword, while earning the arcane rapier, scimitar, mace, and katana. Still these are my two main weapons. Coincidentally looking like upgraded versions of the Elucidator and Dark Repulser.
The Dark Repulsor-looking blade is...
Galaxy Universe +13 (later enhanced to +15)
Damage Value: 1099
Attack Delay: 80
Experience Gained +21
And the Elucidator-looking blade is...
Variable V Vice +15
Damage Value: 1551
Attack Delay: 75
[Rarity: 6] Effect: Crt rate up
Just like the Dark Repulsor is weaker than Elucidator, so is the Galaxy Universe weaker than the VVV. I still have yet to see any one-handed sword with more damage value than the VVV, and even most two-handed swords I've forged have less damage value.
Now the reason I had forged these was to make full use of a new sword skill I'd acquired, called Nebular Empress. As you see in the video, it's overpowered, but you have to earn it. The boss you have to beat can be pretty tough at first, but you have to do so many other quests combined just to get to her, one after another, and fight multiple bosses.
However, after you beat her, you not only get the arcane skill for the weapon style you have equipped, but your partner gets it too, so my Sinon has the arcane skill for daggers. Once you beat her the first time, you can just go directly to her again and again to get more arcane skills for different weapon types.