Here is The "Bing It On Challenge", Microsoft's version of the "Pepsi Taste Test". Microsoft claims that "in a blind comparison test", people preferred Bing 2 to 1 against Google.
The "game" consists of 5 rounds, where you can choose from a list of "search queries" or you can put your own. In each round, you can pick either side, or you can choose "Draw" (a tie).
Funny thing is - if Google ends up beating Microsoft, there is a "Rematch" option, whereas if Microsoft won, there isn't.
Feel free to try it out
here!
Post your results below! I scored a 2-1 win for Google, with 2 draws.