Be the jury yourself. Read like Woolf, widely and without preconceptions. Read science fiction, read historical fiction, make your own judgement, and then talk about it. Try this as a kind of experiment: read 30 writers new to you. It's a big project, but what a lot of good reading would come of it. And New Scientist readers will be quickest of all to see that the literature that best expresses our time, that speaks to our time, is science fiction. How could it be otherwise? Our world is a science fiction.