to answer your question, no; if you want to solo Vanaduke, start out with an Argent Peacemaker and progress to Blitz Needle.

Even if it doesn't hit as hard against Vanaduke as before, it still provides excellent mobility--the perfect gun for an inexperienced player.

I use Valiance for mask phase in duo/solo, or if I'm water-thrower in a larger party.

You can throw water, sit outside of the black orbs and shoot valiance with minimal movement.

There are much better options for this though.

valiance can do it, blitz is better

@ Bopp
I'm going outside to make out... care to join me?

In soloing, Valiance does more damage to vana than the AP, you can still kite just as quickly, its bullets hit vana more reliably than a Supernova's, its bullets can do knockback from close up, unlike the Supernova (unless you count the charges), Valiance knockback is more reliable and more predictable, etc.

Valiance is not a bad gun for Vana, but basically, there are better guns; such as, blitz needle, argent peace, supernova, etc.... (see the above_

Valiance can arguably be better than Supernova in terms of knockback as it kb's reliably on each shot, and is more controllable, whereas Supernova shots need to expand, and fling stuff all over. But, i digress, that's a different arguement ;)

Not in my experience. It does on occasion, but i certainly wouldnt say often. Most effective gun for Vana is blitz, then Polaris (shock is godly when it comes to stopping Vana's charge, but does reduced damage), and I'd say supernova and Valiance are equally effective. I prefer the Valiance, because frankly it's fun to use, and is still effective.

Remember Batabii, while you are often correct when you say that someone is not using an optimal offensive/defensive loadout, there are other factors involved in people's playstyles. For instance, there is no reason why I would use a Triglav by your reasoning, when i have several other more effective items in my arsenal. By my reasoning, going with an all normal loadout of Triglav/Supernova/Valiance/Volcanic Pepperbox is simply an additional challenge, and frankly it's enjoyable. ALso, Valiance looks cool.

"Also, Supernova seems like a worthless idea. It has all of the annying problems of the Polaris without the Shock status."
Point out all those annoying problems, seriously. Oh right, it blasts Vanaduke across the room! Its funny that you mention Polaris as being better while Supernova has the same exact mechanics and does almost twice the damage of Polaris to Vanaduke.

So much claim about what gun is supposed to be more powerful .... did someone actually calculate at least a theorical dps for each weapon ? I can't do that because I don't own Supernova nor Valliance (and to be honest, I am not that interested in that debate ... I'd take the gun I am the most comfortable with, the difference in time to kill is probably minimal, once you take autoguns out of the comparison).

Does they have the same exact fire rate and reload time ? Because if they don't, you want to compare dps and not raw damage (which would be comparing apples to oranges). Same problem goes for comparisons with Argent Peacemaker.

Just to say that instead of arguing, providing some concrete numbers (and eventually reasonable interpretation) would settle the debate much faster.