On Monday Granta will reveal its latest list of Best young British novelists. Love it or hate it, the list has become a bit of an event since the first one was revealed in 1983.

The 2013 selection will be rendered all the more poignant by the death of Margaret Thatcher, who – as Robert McCrum pointed out this week – inspired many of the class of '83. Ian McEwan, one of their number, offered an explanation for this apparent iron lady irony: "We liked disliking her," he wrote. "She forced us to decide what was truly important."

The rallying posts of the first genuinely post-Thatcher generation are less clear – and politics certainly wouldn't appear to have a defining influence on any of the writers on the wish-list compiled for the Observer by Alex Clark, former Granta editor and doyenne of the 2003 selection.

Now it's over to you. Which British novelists under 40 do you think will define the literary culture of 2013?