Get the S - cheaper and less bugs currently. My son's friend has the X, us the S. During the latest COD live beta, his friend continuously had to wait for game updates for his platform while we were going full time without interruption. Game discs wear and fail. Digital rights allow you to download (for free) years after you've deleted it. Finally most decent newer tvs will scale the series S's max 2560 resolution to 4k (or not far) All sign point to the S!