I don't think I have been tagged (if you did and I missed it: sorry) but it's fun:
BOOKLET OR TOME? Difficult. I do love long books but they are so uncomfortable to read so I welcome e-books here a lot (or just handy editions broken up into two or more books)
PRE-OWNED OR NEW?
HISTORICAL FICTION OR FANTASY? Fantasy. I love most fantasy sub-genres but am rather picky in historical fiction and only interested in a few periods.
HARDCOVER OR PAPERBACK? Paperback. Need less space, are cheaper and lighter.
FUNNY OR SAD? Both...though I probably read more sad books overall.
DO YOU PREFER READING IN SUMMER OR IN WINTER? I read when there is a book nearby, independently of the weather.
CLASSICS OR MAINSTREAM? Difficult. School ruined classics for me for a while but I'm slowly rediscovering my interest again. Still overall I read more mainstream.
GUIDEBOOK OR FICTION? Fiction.
CRIME NOVEL OR THRILLER? Crime novel. Thrillers are so not my thing.
E-BOOK OR PRINT EDITION? Depends very much on the book. I do love my e-reader and wouldn't want to miss it but there's still something special about print books.
COLLECTING OR CLEARING OUT? Next question please. I am much more a clear-out person than I was a few years ago but mostly I'm still a collector
INTERNET OR BOOKSTORE? I try to get my German books in the local bookstores because there's no price-difference anyway but English books are mostly much cheaper online and e-book-wise I don't have a choice anyway as I sold my soul to the devil amazon
BACKLIST OR NEW PUBLICATION? Both.
BEST OR BAD SELLER? Bad Seller mostly. 95% of my meetings with the bestseller-list were not happy.
COOKBOOKS OR BAKING BOOKS? Baking Books. I love both actually but my cooking is usually 'Let's look what's in the cupboard/fridge and throw it together' while I follow recipies for baking.