It has been several years since I was a partner in a quilt shop that has closed. One of our main vendors was Checker Distributors. At their site they list Atkinson Designs as their #1 Vendor, and Yellow Brick Road is still on their top 20 list...it has been for years...and years...I would say it has to be the best selling pattern ever...but would also agree that most popular pattern would be log cabin.