Amazing website: http://iwl.me/
Supposedly figures out what famous writer your writing style is like.
For blog posts:
For creative writing:
Sometimes I also got Dan Brown for the fiction. Ugh. I really do hate the way I write fiction, though, and my example text is from my Structure and Style class from nearly four years ago... I should start writing fiction again just to prove that my style has improved.
For academic papers:
P.S. I just copy and pasted a few paragraphs of one of my old papers that was supposed to mimic Kafka and the dumb website said James Joyce. Either I picked the wrong (quasi-)modernist or this website is a bunch of hooey.