It’s often been said—I believe the saying originated with the film
Pulp Fiction—that you’re either an Elvis man or a Beatles man. You can’t be equal parts fan of the larger than life King of Rock and Roll and his bombastic, hip-shaking style, and love the cerebral, trippy sounds of the Fab Four with equal fervor (though apparently the Beatles were themselves big Elvis fans—go figure).
Whether or not you buy into the theory I think it can be profitably applied to the dual nature of zombie fiction.
Zombies are certainly malleable monsters and can represent concepts like out of control consumerism, or the dangers of conformity, as well as mortality, cancer, and other real-life issues. Zombie literature can be "literary," in short. But in the end when I pick up a zombie anthology I want mostly stories about flesh-eating undead overrunning the world, and humans stubbornly fighting back.
World War Z by Max Brooks is still the high water mark for this type of zombie fiction. If you’re going to publish an anthology about zombies, the stories ought to have a lot of red meat and apocalypse to them. Deep literary and/or philosophical subtlety? Yeah, zombie fiction can do that too, but I prefer a little less conversation and a little more action in my zombie stories. Literary is okay in smaller doses.
Fortunately
Zombies: Encounters with the Hungry Dead (edited by John Skipp) contains enough Elvis to scratch my rock-and-roll itch. It doesn’t warp the term “zombie” beyond all recognition, as does the John Joseph Adams anthology
The Living Dead, which features a few stories with no zombies at all and lots of ham-handed political commentary. There’s a little of that here (Lisa Morton’s cartoonish “Sparks Fly Upwards”) but not enough to be a deal-breaker.
Zombies: Encounters with the Hungry Dead contains 32 short stories by such luminaries as Stephen King, Robert Bloch, and Ray Bradbury, as well an introduction by Skipp and two concluding essays on the history of the zombie genre and the reasons for its enduring popularity. Checking in at 700 pages, the book is so thick it “can also be used for staving in heads,” proclaims a back cover blurb. I believe it.