Well the results are in from my poll:
It would appear everyone prefers to win phsyical books. I am surprised that not one person prefers ebooks. I am quickly becoming a huge ebook fan. I will admit to liking phsyical books, but mostly because I can give them away after I have read them.
I do have a new poll up checking to see if you prefer giveaways with one prize, or with multiple prizes.