I have only ever read the Wheel of Time by Sanderson, but the dialogue was enough to convince me I never needed to bother with him again. Meanwhile, I find King to be probably the best American English writer that I've encountered. By that I'm really only talking about his use of the language, and what a pleasure it is to read. And of course, dialogue is a part of that. This is all subjective of course - that's just how I feel about it.

Sanderson didn't write much of the Wheel of Time, only the very end after the (main) author died.

I really hate to be a guy that's like "I know", but come on, I obviously know that. The dialogue was good from Jordan, bad from Sanderson. In my opinion. Thus my statements above.

Even if you know that, what you wrote is misleading to anyone else reading who doesn't know the details.

I mean, his name is only on 2,700 pages of it.

Which sounds like a lot, but the full series is over 10,000.