Prompted by your message, I did a (Google) search for the phrase "is bing it on specific to the usa" and turned up a Microsoft article announcing the campaign. It sounds like the comparison test page might be available only within the United States. Per the
article, "[b]eginning today, America can click and choose which Web search results it prefers by participating in the Bing It On Challenge...".
I tried it and my results were 3-Google, 1-Bing, 1-Draw. The comparison made me realize some of the features that I value about Google but don't usually pay a whole lot of attention to.