The number of plays is a statistic that is kept, and you can find the quizzes with the most plays. This tends to mean that they are on popular topics, not necessarily that they are good quizzes. The really outstanding quizzes can be played by thousands, not just those with an appreciation for the niche subject, and still have lots of excellent ratings, but the rankings are based on percentages, rather than absolute numbers, of players giving each of the five possible ratings.
(Editor in Humanities, Literature and Books For Children)
That's all, folks!