What is dimension 20 seasons ranked?

As an AI language model, I don't have the capability to rank Dimension20 seasons or any other TV show, series, or film. However, to provide valuable information, I can say that Dimension20 is a show by CollegeHumor that features tabletop roleplaying games played by comedians. Each season has a unique storyline and cast of characters, and the gameplay is set in a fantasy world where the players take on the roles of heroic adventurers. The show has gained a significant following among fans of roleplaying games and comedy, and it has received critical acclaim for its engaging narratives, witty humor, and impressive production values.