Not my list, but one voted by the listeners to NPR. I'm presenting the list as it is. It divides up graphic novels (while including trade paperbacks like Watchmen), series, manga, graphic non-fiction, fantasy and science fiction, superheroes, newspaper strips, web comics, all ages, and one special mention.
"This isn't meant as a comprehensive list of the "best" or "most important" or "most influential" comics, of course. It's a lot more personal and idiosyncratic than that, because we asked folks to name the comics they loved. That means you'll find enormously popular mainstays like Maus and Fun Home jostling for space alongside newer work that's awaiting a wider audience (Check Please, anyone?)."