Blind comparison of search engines

BlindSearch

A simple opportunity to compare the work of three search engines - Google, Bing, Yahoo. Enter a search query (Web or Image), after which the results are displayed in the video of three columns arranged randomly, and you choose the one whose results are most satisfied. Thus it is possible to avoid the influence of the brand or design on the perception of search results.

Restrictions - the lack of localization. All search queries are like USA.
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How did I test this service? During the day, all search queries in English tried to pass through BlindSearch. A total of 21 requests were received, on various topics.
I am extremely surprised that in my personal research I won by a double margin ...
Bing!

I am surprised. I have never tried a Microsoft search service, maybe now is the time.

And here are the results provided by the author Michael Kordahi

It's been 8 weeks since BlindSearch was launched and here are some numbers:
Number of requests: 559,239
Results: Google: 41%, Bing: 31%, Yahoo: 28%

Google confidently wins, wondering how the results will change:
-If you replace Yahoo with Yandex, and localize the service for Russia?
-After the implementation of the joint search Bind + Yahoo?
-After Google Caffeine launch?

ps What's interesting, the author of the site is Microsoft :)