Saturday Night Live is in a tough spot. It's become commonplace to rag on the show for being less funny than it was a decade, two decades ago. It's also attempted to keep pace with a world that sees topics memed to death before they ever get a chance to be satirized by cast members.

A lot of the show's success, however, hinges on the host. The popularity of cast members help, but an episode hosted by the right celebrity will guarantee that people tune in. SNL season 50 has had a pretty fascinating mix of hosts, so we thought it'd be fun to go through and rank them as the season progresses.

Let's start at the bottom and work our way up.

4. Michael Keaton (October 19)

Look, Michael Keaton is a comedy pro. He's been funny for longer than some of the current SNL cast members have been alive, and he...