Some thought it would be a dull affair. But the contest between multi-millionaire Conservative Zac Goldsmith and Labour’s council estate-raised Sadiq Khan to become London’s new mayor in May 2016 was never that. Instead, it became a fierce, sometimes bitter and yet illuminating one set amid the British capital’s stubborn poverty, towering wealth, triumphant growth and nagging fears about Islamist terror. Dave Hill is the Guardian’s award-winning London commentator. He followed the fight through every round.