52: The art yo-yoed a bit in the first month, but recently it's improved. My favorite storyline is the Renee/Question/Batwoman arc, but this week's frightfest with Sue Dibny was pretty gruesome (and fun). I should take a moment and re-read this from the beginning.
Supergirl and the Legion: I've liked Mark Waid's revamp since it launched, but the current run with Supergirl (and the attendant mystery of her presence) is pure candy.
All-Star Superman: Insanely great.
Batman,
Detective,
Superman,
Action: the revamp of the Bat and Super franchises has been solid. Morrison's
Batman is my current favorite of these.
Daredevil: I think this, and the now-on-hiatus
Young Avengers is the only Marvel series that I pick up regularly.
Local: Love the stories, love the art.
Age of Bronze: Every issue Eric Shanower manages to surprise me, someone who's been reading and studying Greek (and Roman) myths since childhood. I don't think there's a better artist in the field who's publishing on a regular, albeit bimonthly, schedule, and he manages to make all those dark-haired characters somehow distinct in a b&w book. Amazing.
Wonder Woman: OK, I have written about this one, but I loved the first issue so much that I can't not mention it. Or something.