Actually, the quality of comic books, graphic novels and animation has increased substantially over the last few years. Japanese anime is far more sophisticated than most American cartoons. For one thing, some of it is written for adults. Ditto for Japanese manga. With regards to comic books, several graphic novels are listed as some of the best literature of the past century. I teach English Lit and English Composition, and one of my courses is a study of the evolution of comics and graphic novels. I would recommend the following works:
Watchmen The movie isn't that great, but the graphic novel was listed as one of the Top 100 Novels of the 20th Century.
The Sandman Neil Gaiman wrote a highly literate, complex series that explores history, religion, mythology, fantasy and horror. Won the Nebula Award for Best Short Story.
Batman Year One/The Dark Knight Returns Frank Miller re-defined the character with these two books, which also explore the idea of a dystopian society and revolution.
The Wind Rises An animated film by Hayao Miyazaki. A fanciful retelling of the life of Jiro Horikoshi, the man that designed the A6M Zero.