LONDON - Most people across the world would prefer Democrat Barack Obama to win the US presidential election over his Republican rival John McCain, a new poll spanning 22 countries showed Tuesday. The BBC World Service survey found the most common view in all nations polled was that Obama -- who staged a euphoric European tour two months ago that included a speech to 200,000 fans in Berlin -- should win in November. An average of 46 percent of all those questioned thought US relations with the rest of the world would improve if Obama took office, compared to just...