The spark traditionally gets me wrong. I've taken their gender test at least 3 times over as many years and each time it's classified me as a male with somewhere around 80% accuracy, though it places me near the middle of the chart.

The gayness test was also odd in its results. Being bi, I have to take it twice and then interpret the numbers. Ahh, well.

So, the end result is, I've yet to find a spark quiz I liked.