Exar Kun vs Darth Vader

What debate? I didn't debate with anyone but Intrepid. And only because I had 4 cups of coffee. It's really hard to get "into" it after all these years. But occasionally it does happen.

Destroying some poor kids hand who wasn't killed by the Thought Bomb because he was too weak in the force isn't the same thing as conjuring up Dark Side Tendrils capable of vaporizing all forms of matter and Bane level opponents. People like King Ommin can use Sith Magic to perform planetary level feats, yet when Ulic came out of nowhere was pretty much owned. It was made clear he needs prep to take down his enemies. Unless Ommin is around Sidious's and Vitiate's level.

And yes, I know Bane said that about Sith Magic, and he's partially true. Sith Magic can allow you to make stars explode and tendrils that can vaporize anything. It basically allows the Dark Side to go full out. But you'd need to have a spell or incantation to do it first. However, it isn't purely raw power, unless you think Zannah has more power than Bane does.

I don't know about "power", but Zannah is stronger than Bane by the end of DoE.

I know that, whenever they become Dark Lords the Banite Sith seem to get a boost of power. But during the fight, no Bane had more raw power, Zannah had more versatility with her magic.