Yuuka's been mentioned in the thread 11 times thus far (technically 13 but those don't count), which if I'm not mistaken is more than any other girl (Alice is the runner-up with "12" but in actuality it's like eight because all of the song names with her name in it).
/jp/ isn't the biggest sample size (especially now) but winning its poll definitely bodes well for Yokai moe~