I also have a Goodreads shelf that lists my "best of" books from 2014. I would add books to this shelf after I read them when I really, really enjoyed them for the purpose of helping to create this list.
I am only going to share the top picks from the shelf because I can't list 50+ books here. Check it out if you have a moment as I do recommend any of the books on that list as really great reads. The books I'm sharing here are in no particular order. I'm not very good at picking just one favorite; that being said, my favorite book from 2014 is The Art of Arranging Flowers
2. If I Stay/Where She Went dualogy
3. Driving Lessons
5. All Soul's Trilogy: A Discovery of Witches/Shadow of Night/The Book of Life
7. Percy Jackson/Heroes of Olympus series
8. Better Off Friends
10. Alphabet Weekends
11. The Ninja Librarians
And a few of the best Picture Books I read in 2014:
2. Moo
3. The Most Magnificent Thing
4. Flotsam