I guess it is hard for you to see the survey for what it was... A SURVEY. Mormons didn’t write it, neither did Mormonism. The fact that Mormons demonstrated more knowledge of things Christian (not surprising) than did other “Christians” is all that is pointed out. you can try to be apologetic about the results but it is what it is. Deal with it.
Hum...
As far as "knowing more about Christianity” two thoughts...
Did the survey decide if the questions were just answered or answered correctly...
Second, as it is you guys have made a habit of studying Christianity for 180 years to understand how to twist it into your “becoming Gods” polytheistic product that has a familiar ring to it for easier sales. You spend hours training and studying from grade school up so you can go out on "missions" to divert people away from Christianity. Like any good sales person you are more knowledgeable about your own product as well as that of the competition than the average customer. With the new sales directive of the past decade or so that is now pushing the "We are Christians too" theme, that skill set has become more important than ever.
So why are these results a surprise again?..