[Teuthida]

That's tough. I don't read too many series that aren't solo runs.

Dan Slott - She-Hulk
Grant Morrison - New X-Men
Bryan K. Vaughn - Runaways
Ed McGuiness - Superman/Batman

That's all I can think of. The rest are solo series or miniseries.

Brain Michael Bendis on Powers and Ultimate Spider-man
Robert Kirkman on Invincible, The Walking Dead, and the original Brit miniseries
Grant Morrison and Frank Quitely on WE3
Warren Ellis on Transmetropolitan and NextWave
Stuart Immonen on anything he does, especailly NextWave
Villains United and Secret Six by Gail Simone
Craig Thompson's Goodbye Chunky Rice and Blankets
Bill Willingham on Fables and Day of Vengeance
Bryan K. Vaughn on Y The Last Man
Phil Hestor on the Irredeemable Ant-Man

...ok, I'm just listing stuff I like now.