I think what makes a good story is incredibly subjective. Is one story better than another one because it is more complicated? Less complicated? Better structured? More original?
I personally believe a story can be overcomplicated, messy, not particularly original and still absolutely fantastic. Why? I don't know. All I know is that stories are ultimately about the personal experiences audiences have with them. I can't speak for the other games but I think Divinity II has a great story with some very interesting characters in it.
