Ken Vs. Boris in Race to Be London's Olympic Mayor One sports an unruly blond mop, spouts Latin aphorisms and loves to ride his bicycle. The other is a neat, newt-loving socialist who prefers to travel by subway. Their contest is an Olympic-size grudge match. Meet Boris and Ken - hometown celebrities known universally by their first names. When the 2012 London Games open on July 27, one of them will stand before billions of television viewers as mayor of the host city. The incumbent, Boris Johnson, freely admits it had better be him and not Ken Livingstone - his predecessor, intense rival and would-be successor. "Obviously it's an eventuality that I try not to contemplate," Johnson said during a break in campaigning for London's May 3 mayoral election. And I'm working very hard to make sure that I'm spared by the electoral reaper. Whoever wins, London's next mayor will be a larger-than-life figure whose gaffes and idiosyncrasies would have sunk a less confident politician. The winner will oversee a world-class city of 8 million people and a 14 billion-pound ($22 billion) budget. Johnson, a Conservative, hopes to win a second four-year term while Livingstone, London's mayor from 2000 to 2008, is from Labour - but both transcend the parties they nominally represent. Livingstone has the greater London ties. He was born and raised in the city, speaks with a nasal cockney accent and has been prominent in local politics since the 1970s. Johnson, with his rhetorical flourishes and unmistakable shock of hair, is a more quintessentially British character: the erudite upper-class buffoon. "Boris reeks of the notion of British character for a nation that's self-identified as liking eccentrics and people who are a bit out of the ordinary," said Tony Travers, an expert in local government at the London School of Economics. Ken is more technocratic - looking and in reality. Both men have tied their political fortunes, in part, to the Olympic Games. Livingstone helped lead the bid that brought the event to London. Johnson has presided over four years of preparation for the July 27-Aug. 12 extravaganza. Livingstone says the Olympics have already proved their worth, by transforming a grim postindustrial patch of east London into the 500-acre (200 hectare) Olympic Park. "I bid for the Olympics so we'd get the investment in what's the most deprived area in southern England," Livingstone said. The sporting event is a sort of add-on at the top. It's important to get the most polluted site in London cleaned up and new homes, new transport infrastructure. As far as I'm concerned, the benefits of the Olympics - we've had those already. Johnson, who has had to handle the logistics of mounting the games, also stresses its legacy of thousands of new jobs and homes. And he is keen to reassure Londoners, and visitors, that he is on top of the two biggest potential nightmares: security and transport. "Security is obviously a great priority for us and we're making sure everything is in place," Johnson said. We think the risk level has come down but clearly you can never be complacent. And if London's overburdened public transport system seizes up under the strain of so many visitors, he said, "we think people will get the point, they'll manage and they'll be able to go off, have a beer or whatever it is and absorb the impact."