I'm glad that Microsoft for trying to break into the search sphere with Bing. It's good to keep search competitive so things continue to improve instead of stagnating.
That said, I find the "Bing it on" ads and marketing campaign to be misleading. I think that their Bing vs. Google test favors Bing (surprise, surprise) for three main reasons.
First is Google's info sidebar that now accompanies search. Google Obama, for instance, and you get the typical search engine list of blue links and their summaries, but you also get a really helpful side panel with a picture and biographical info. This side panel is not present at all in the Bing challenge, so you're not using the full experience for the comparison. Sure, Bing has it's own side panel that it's excluding, but it's social networky, hard to parse, and really uninformative.
Second, my hunch is that the kind of searches people do for these kind of challenges are really generic, like "butterflies," "red dresses," or "sports cars." These will all result in picture-heavy results, and Bing puts pictures closer to the top than Google does, and people like pictures. Further, these generic searches don't really represent what people actually search for. If you do this challenge, try to use something specific that you'd actually look for, like a professional colleague's name, an academic paper or book title, or a food dish that you'd like to cook.
Finally, if you do the challenge on someone else's computer, like for all the commercials and stats they're showing you, you're not signed into Google, and so the challenge isn't showing personalized results. Doing the challenge at home, this isn't an issue, but the stats and commercials are crucial to the marketing campaign. Google is really smart about knowing what you like and what's relevant to you, and as far as I can tell, Bing isn't, but I might not have used it enough to pass verdict. Bing hooks into Facebook, but that's not relevant information for personalizing search. (It is, however, how they track you from session to session, the way Google does with your Gmail or your Google account.) What is relevant information is what you've searched for and clicked on in the past, which Google has by the bucketful.
It's possible that Bing is really great. Lots of people like it for the pretty search page, but I always search by hotkey, so that doesn't matter to me. It's also entirely possible that Bing can give great personalized results once they build up enough data about you. But I don't want to waste my time training them, when I already have a trained engine. I also use a bazillion other Google products: Gmail, Calendar, Drive, Blogger...the list goes on, so I'm going to be signed into Google anyway. I don't really use Facebook that much, and don't like the idea of my search experience being tied to my Facebook account. I want the freedom to delete that account without losing quality of search.
I'm obviously a Google loyalist, but I think Bing is a great search engine and I'm glad people can pick. I'm not objecting to Bing, but to the marketing for it.