I recently wrote a review of the Dark Souls 2 Crown of the Sunken King DLC, which I feel is possibly one of the best expansion scenarios ever made. In another thread here I was also talking about TLoU and its additional content that I felt was sub-par. People are clamoring for Mario Kart DLC, and I was also talking about MGR:R Jetstream Sam scenario to a friend in real life. Everywhere I go lately, DLC seems to come up.
So I was wondering, what is the best DLC scenario/expansion/content that you've ever purchased?