Going through category pages of multiple e-commerce websites, it seems that there is no standard in the parameters chosen to sort the list of products.
Amazon gives the option to sort by relevance, most popular, price (low to high), price (high to low) and avg. customer review. Crate & Barrel adds the option to sort by A to Z. Drugstore.com adds parameters like New to store, Saving by % and Saving by $, and Sears adds most viewed to the list.
I wonder if anyone have some real-world experience or better yet, statistics, on the use of the different sorting options and the preferred default sorting option for category pages on a e-commerce websites.
The question is about sorting category pages in general but I'll appreciate answers that relates specifically to the beauty, personal care and health categories which is what I am dealing with right now.