Well, this post is hardly representative of how The Walking Dead is all the time, or even a significant chunk of it.
I've read other zombie comics, and the majority of them focus on excessive gore and little else (Avatar's Night of the Living Dead comics come to mind especially). What sets The Walking Dead apart from the others is that it focuses on the characters and how they coexist together in the world. There have been entire issues with nary a zombie in sight. It's more in line with the quality of a George Romero zombie film.
Here's a good review that describes it accurately: