Long story short (ha!), books are the superior medium. They definitely have some drawbacks, like not being able to read them during a run, but books are the best overall. They smell good, they feel good, and they make for cool collectibles. Podcasts are ok, but ain't nobody impressed with your podcast collection. Audiobooks, though? Well, they're a little bit of a cheat when it comes to getting your books read. They have all the benefits of books and podcasts and none of the weaknesses. Also, I can run and listen to audiobooks; that's a big bonus for me.