Can you recommend some popular American comic book series that are frequently discussed on Reddit, and why are they so popular?

Some popular series include *The Sandman*, *Watchmen*, *Ms. Marvel*, *Invincible*, and *Saga*. They are popular due to their complex storytelling, strong character development, innovative art styles, and exploration of relevant social issues. Reddit discussions often focus on the series' narrative arcs, character motivations, artistic choices, and overall impact on the comic book landscape. They also spark discussions regarding the creator's intent and reception of the work.