Do you prefer hardcovers, trade paperbacks (the bigger ones), or mass market paperbacks (the smaller ones)? Why?
Honestly, aside from prefering paperbacks over hardcover, I don’t particularly care. Hardcovers have a tendency to be big and bulky and a pain in the butt to bring places, but I do have some. As far as paperbacks are concerned, I don’t care about whether they are trade or mass paperback. I can read them both just the same. They are easy to carry and I can definitely fit more of them on my numerous shelves.
I suppose the only thing that bugs me about mass market paperbacks is that you’ve really got to hold them open or they flip right closed on you. The trade paperbacks I don’t have that problem with. But either way, they are both fairly cheap, easy to read, and easy to carry whereever my little heart desires.
Any preferences on your end?
Among Stories 
I prefer e-books… but that wasn’t an option. 🙂 I don’t really take books places, so I don’t mind hardcovers.
I like ebooks too, and I certainly read my fair share of them, but there’s something about holding a book in my hand and the feel of the pages. I could never give that up. And honestly, I always have books with me. I can’t go anywhere without one. It’s an addiction. 🙂