This is way cool, though I can't help but think that the results might differ from actual A/B testing because the testing context is explicit. Have you done comparisons to backend A/B testing to see how well the two align?<p>It would seem that traditional A/B testing allows you to see what actually converts, while this framework would be biased towards user preference--which doesn't necessarily imply conversion. For example, I think Amazon's site is ugly and busy, and given the choice between that layout and a cleaner one, I'd probably choose the cleaner. That said, there's no way they haven't tested the hell out of the home page and discovered that a busy page, though uglier, converts better.
I know more than a bit about statistics and A/B testing. My first reaction is that asking for more information from a limited sample set does not actually give you the power to do more powerful statistics. Claiming otherwise is a bad sign.<p>Secondly a lot of what A/B testing gets at is subconscious reaction, not conscious reactions. Consciously when we're asked a question and are paying attention, we are poor judges of how we're going to react to, say, a larger button to click on. But when we're actually using the site, we notice and hit the larger button.<p>And thirdly, if you're actually going to seek out a small sample of people for detailed information capture, do it in person. I can't stress this enough. If you think up questions in a vacuum it is hard to ask the right questions. That is part of what makes A/B testing so frustrating. But if you have a conversation and are observant, you'll quickly generate good ideas.
Interesting take on a/b testing. A small suggestion - it would be nice if clicking on the buttons after the text "Which icon do you prefer?" actually demonstrated how the service worked. It took me a while to realize that you need to click on the 1-2-3-4-5-6-7-8 steps to go through the process (they don't look clickable).
I like this hybrid of survey + A/B testing. Interesting approach. I agreed with marbemac, I also confused with the demonstration's UI on your homepage.