For the first time (that I recall), I just sorted my stories by total download counts, and noticed something odd. My most downloaded stories rarely have the highest scores, but they retain those high scores in spite of the low scores.
I can understand lower downloaded stories having higher scores, since they aren't read by as much of the general public, but I find it striking that the top stories aren't all highly rated. (Mine range from 7.7 to 8.1, so it's not much of a variance.)
My numbers on FS and Sci-Fi are much lower, but I found the same thing (even though the top five decrease from the highest to the lowest, although the three lowest are also the highest scores of them all).
I guess it shows that, if a story is decent, it'll drive readers, even if they intensely dislike certain aspects of the story (often as they're designed to do).