Obama Preferred by International Audiences
PIPA did a poll of 23 countries concerning the 2008 US Presidential election and their results showed that in 22 of the 23 countries it wasn't even close, Obama was preferred.
The one country where it was close? America. I kid you a little. They didn't actually poll Americans on that question, but at the time, July-August 2008, the race was very close in America.
It must be noted, however, that in Russia, Egypt and Turkey, most people didn't think either would be better. I strongly suspect this is because of Obama's idiotic rhetoric concerning aggression in Georgia and South Ossetia, and his volte face of policy concerning Israel and Palestine.