I'm finally getting around to reading Dune, but I am simultaneously reading The Secret History of Star Wars. I am a fairly fast reader, but I literally only get to read while I sit on the pot. Most of the books I get through are actually audio books while I drive for work (some days I spend around 4-5 hours on the road), and I'm pretty demanding when it comes to those, only willing to listen to unabridged versions. The reader for Dune was pretty lame, though, and as the book is complex, I figured I'd get more details if I read it myself. The Secret History of Star Wars is interesting; I'd love to read the officially published version, as I'm currently just working through the pdf.
But as for the audiobooks, I'm currently listening to The Chronicles of Narnia: Voyage of the Dawn Treader (my least favorite so far).