@Ferox
Unfortunately, if a mob can evade, they'll dodge all projectiles except Alchemer bullets, which makes it rather hard on projectile-producing swords such as Winmillion.

@Danny
Some time ago, the Cutter series' damage was nerfed by a notable amount. WHB was reduced the most, if I recall.
Some damage was added back later to it, allowing it to be on par with its other upgrade line, Dread Venom Striker; on the other hand, Poison's use was buffed considerably, debuffing an afflicted target's attack and defense, along with preventing being healed and averting the impulse to heal.
Overall, the WHB has developed limited, situational use, due to its bonus effect only affecting beasts (Wolvers and Chromas.)

On the topic: Agreed; Divine Avenger.

Check this post.
I prefer to be biased on occasion.
I don't know how you'd want your playstyle to be, so I won't say anything just yet.

I remember when Khorovod was the weapon everyone had... till it was nerfed lol...
Hopefully some more weapons will be nerfed when we get back in >:D

I'm still going for Troika/Kamarin/Khorovod. Even if they were nerfed, it was probably for balance. And I only ever played the series in their nerfed form and it seemed fine. It depends on how you play; the Cutter series doesn't work for me because I don't have fast enough reflexes to control it. But a sword with large damage, sweep, knock-back that can stop attacks in the higher levels meshes well with me; I try to think before I hit, and with a shield between swings I'm happier. MUDs again.

Of course, I keep other swords handy just in case. I think I'll also go for Calibur and its alchemical path that leads to a 360° spin attack.

Find the sword series that fits you.