I often listen in the car. Audible is way better than iTunes, at least on an iPhone. My iPhone frequently lost my place and I had to manually find the location where I had stopped listening. The Audible app works well.
My favorite audiobook this year is The Art of Fielding by Chad Harbach
http://www.amazon.com/Art-Fielding-N.../dp/0316126675. I also enjoy John MacDonald's Travis McGee series.
https://en.wikipedia.org/wiki/Travis_McGee