I don't usually review graphic novels, but I'm making an exception for two that were written by writers whose storytelling ability I particularly admire.

7 Against Chaos by Harlan Ellison
Published by DC Comics on July 16, 2013
Earth has been plagued by a series of disasters:  people have  spontaneously combusted or transformed into snakes, a harbor changed  into a desert, a mountain of ice appeared from nowhere.  To save the  Earth from crisis, high level computers have directed a robed man to  assemble a team from various colonies around the solar system.  A slave  who is a female version of Edward Scissorhands,  a faceless cat burglar, a woman who can shoot fire from her  fingers, a fellow who has been reengineered as an insect, a robot, and a  technological whiz with telepathic tendencies join the robed man to  "fight for the fabric of reality itself."
Harlan Ellison -- the best writer of short stories in the history of science fiction -- has  given us a time travel story combined with a "humanize the robot" story  combined with a some superheroism stories combined with a couple of love  stories combined with a quest/adventure story combined with an alien  invasion story, all wrapped around a good versus evil story, with evil  personified by someone or something named Erisssa.  And, of course, it's  all ultimately an homage to Seven Samurai.  You can't fault Ellison for lacking ambition.
Although  the story is entertaining -- and the particular way in which Ellison  combines the alien invasion with time travel is innovative -- I can't  say that 7 Against Chaos resonated with me in the same way that  Ellison's best work has done over the years.  In fact, the authorial  voice doesn't sound like Ellison to me, which makes sense, since Paul  Chadwick not only did the artwork but wrote much of the dialog.   Chadwick's art serves its purpose but it didn't stun me.
Maybe  I'm a little disappointed because, like most of Ellison's eighty zillion  fans, I expect to be blown away by every glob of spit that comes out of  his mouth, and 7 Against Chaos just didn't grab me.  Had this been  developed as a twelve-issue miniseries, I'd probably be more excited  about it.  An awful lot happens in a limited number of pages, and that  means an awful lot is sacrificed.  The characters are strong but  character development is too often rudimentary.  The story comes across  as the outline for an epic blockbuster but doesn't deliver a blockbuster  punch, largely because it's too condensed to achieve epic status.  None  of this means I dislike the end result -- it's fun and clever and it  displays flashes of the power Ellison so readily wields -- but I see a  lot of potential here that wasn't maximized.  I'd recommend it anyway (albeit with reservations)  because ... well ... it's Ellison.
RECOMMENDED WITH RESERVATIONS
 

Before Watchmen: Nite Owl/Dr. Manhattan by J. Michael Straczynski
Published by DC Comics on July 16, 2013
I'm reviewing this because I'm a fan of Alan Moore's brilliant Watchmen series (the serialized graphic novel, not the movie) and of J. Michael Straczynski.  Straczynski shows his versatility in Before Watchmen: Nite  Owl/Dr. Manhattan.  This volume collects three stories.  The first  focuses on Nite Owl and his relationship with Rorshach.  With  Straczynski at the writing helm, you know there's a good chance that  irreverent humor will balance the story's dramatic content.  But  Straczinski also excels at gritty, atmospheric noir, and there's plenty  of that here.  There's even a certain amount of sleaze, but it's poetic  sleaze.  Straczinski quotes Alan Ginsberg and he may well have relied on  Ginsberg as inspiration for the raw earthiness of the story.  When  Straczinski is given license to do his best writing, you're going to get  sex and hypocrites moralizing about sex.  You'll see all sides of human  nature, the pure and the damaged, and it will be delivered with  unvarnished honesty.
The tongue-in-cheek tone that characterizes  Nite Owl's story gives way to achingly serious writing when the story  shifts to Dr. Manhattan.  The blue guy, in all his quantum possibility,  is a deeper character, given to philosophical introspection.   Straczinski plays with time streams and potential realities to develop a  heartfelt story about the difference (if there is one) between what is  and what might have been, a story about the power of choice, including  the choices we are powerless to make.  This is really an impressive  piece of writing, some of Straczinski's finest work.
Another  shift in tone occurs in the third story, focusing on Moloch the Mystic  (and, to a lesser extent, Ozymandius).  This time the story is twisted,  introducing elements of horror as Straczinsky explains Moloch's past.   There isn't as much depth here, but it's just a two issue add-on that I  regarded as a little treat, neither adding nor detracting from the two  main features.
Straczinski stays true to Alan Moore's wonderful  characters.  Rorschach is as messed up as ever.  Straczinski gives us  some additional insight into the cause of his inner turmoil, but he  doesn't alter the character in any fundamental way, and he's faithful to  Rorschach's peculiar speech patterns.  Dr. Manhattan is his brooding,  enigmatic self.  This is a dazzling display of storytelling.  It isn't  Alan Moore, but it isn't meant to be.
RECOMMENDED