In order to measure costume popularity, and to select winners (top 10 human costumes, and top 5 pet costumes) we came up to a simple yet effective formula for costume popularity score.
We were testing and fine-tuning our score formula during two weeks and we think it is almost perfect! Here it is:
x1 - total number of Pinterest "repins" for the costume page(s)
x2 - total number of Google +1 link shares for the costume page(s)
x3 - total number of Facebook "likes" (includes: likes, shares, comments) for the costume page(s). This number is retrieved via Facebook's Open Graph API, and in general it may differ from the number displayed by the "Like" button.
x4 - number of comments for the costume
x5 - sum of all stars 1-5 received by costume from voters
x6 - number of votes for the costume
(in other words, x5 / x6 = Rating)
x7 - total number of entrances (number of times visitors entered Costume-Works.com site through this costume page(s) according to Google Analytics.