Replace hitcount with kudos/average hits per chapter percentage. Sort works on the page by this ratio.
This is a customization of Min's AO3: Kudos/hits ratio. The original script expresses the ratio of kudos to total hits on a work. This version expresses the ratio of kudos to the average number of hits per chapter. New or altered portions of Min's original code are commented.
Reasoning: Each reader of a multi-chaptered story will generate at least one hit per chapter of the story, but can only leave kudos once (or twice if they leave both a guest kudo and a logged in kudo.) Because of this, the original version artificially deflated the ratio for multi-chaptered stories, making them seem to be less liked by their readers than they really are. This altered version divides the number of hits on the work by the number of chapters to arrive at an average hits per chapter number, and displays the ratio of kudos to that. This gives a rough approximation of "kudos per reader."
Caveats: Every hit on a work is not a unique reader. Hits can be produced by bots, downloaders, and reloads as well as readers. Therefore, this is only a rough approximation. However, this variant will hopefully give a more apples-to-apples comparison between one-shot and multi-chapter stories, since multi-chapter stories will have significantly more hits as readers click through. However, this script may still underestimate the popularity of stories that are re-read many times, because those re-reads will gradually keep increasing the hit count without increasing the kudos (since readers can't leave a kudo every time they read a story.)