Why not McCain?
Mr McCain ... has bravely taken unpopular positions—for free trade, immigration reform, the surge in Iraq, tackling climate change and campaign-finance reform. A western Republican in the Reagan mould, he has a long record of working with both Democrats and America’s allies. That, however, was Senator McCain; the Candidate McCain of the past six months has too often seemed the victim of political sorcery, his good features magically inverted, his bad ones exaggerated. The fiscal conservative who once tackled Mr Bush over his unaffordable tax cuts now proposes not just to keep the cuts, but to deepen them. The man who denounced the religious right as “agents of intolerance” now embraces theocratic culture warriors. The campaigner against ethanol subsidies (who had a better record on global warming than most Democrats) came out in favour of a petrol-tax holiday ... The choice of Sarah Palin epitomised the sloppiness. It is not just that she is an unconvincing stand-in, nor even that she seems to have been chosen partly for her views on divisive social issues, notably abortion. Mr McCain made his most important appointment having met her just twice.
Merely by becoming president, he would dispel many of the myths built up about America: it would be far harder for the spreaders of hate in the Islamic world to denounce the Great Satan if it were led by a black man whose middle name is Hussein; and far harder for autocrats around the world to claim that American democracy is a sham ... There is no getting around the fact that Mr Obama’s résumé is thin for the world’s biggest job. But the exceptionally assured way in which he has run his campaign is a considerable comfort. It is not just that he has more than held his own against Mr McCain in the debates. A man who started with no money and few supporters has out-thought, out-organised and out-fought the two mightiest machines in American politics—the Clintons and the conservative right ... On the financial crisis his performance has been as assured as Mr McCain’s has been febrile. He seems a quick learner and has built up an impressive team of advisers, drawing in seasoned hands like Paul Volcker, Robert Rubin and Larry Summers. Of course, Mr Obama will make mistakes; but this is a man who listens, learns and manages well.
The final choice comes down to the greater promise:
... this cannot be another election where the choice is based merely on fear. In terms of painting a brighter future for America and the world, Mr Obama has produced the more compelling and detailed portrait. He has campaigned with more style, intelligence and discipline than his opponent. Whether he can fulfil his immense potential remains to be seen. But Mr Obama deserves the presidency.
It's also interesting that the Economist's choices have almost matched mine over the past few elections except for their choice of Dole in 1996. I would have been for Clinton (1992), Clinton (1996), Bush (2000: yes ... what can I say?), Kerry (2004), Obama (2008).