- Terry Pratchett (10.5)
- John Irving (10)***
- Kurt Vonnegut (9)
- Douglas Adams (8)
- John Steinbeck (8)
- Michael Chabon (7)
- Anne Rice (7)
* I didn't count the esteemed and beloved Mr. Dahl (18)
** really didn't know how to word that -- I've Read 7 or More Books By ? I've Read a Bunch o' Books They've Written ?
*** soon to be the all-time leader, his latest is sitting on the shelf, waiting patiently...
Jan 2012 update: John Irving takes over the top spot with 11, Cormac McCarthy (7), Stephen King (6), and Vonnegut (10) were all added to last year, and I can't believe I missed Elmore Leonard (9 maybe 10?) in the original count (July 2010).