Sometimes it's the artwork, and sometimes it's the story, that appeals either to the writers or the artists, or to the readers. It's when they all work together, all the elements of the comic, for both the artists and the writers, and for the readers, that really makes the comic a work of brilliance.

Sometimes, the writing or the artwork alone can be so complete that it can overwhelmingly make the brilliance of an entire comic.

Of course, the readers ability to lose oneself in a comic can also make for the comics complete importance, even if the reader doesn't consider the artwork, or even the story, of the comic to be all that overwhelming.