Cory Doctorow, David Foster Wallace, William Gibson and Stephen King!
Well, that's according to this little online test.
It's good fun and could make an amusing party game (at a party for just writers of course since anyone else would be bored silly).
Anyway, I'm just relieved it didn't say I wrote like Nicholas Pacione (and if you've never seen his writing you've never lived!) Hmmm, I wonder what his answer would be. Possibly William Burroughs during his cut and paste period?