Hate to be cliche, but Harry Potter would be my top choice.
If I'm allowed to choose a world outside of a book, then the Star Wars universe would be equally awesome (there are some Star Wars books, but not all of them are canon, so...)
Razorland, hence the name
The Chronicles of Narnia or The Wheel of Time.
The Hunger Games, so i can learn weaponry. I want to so badly!!!!
I wouldn't want to be in any book. I like my life now, though I love books very much.
Divergent Chicago and Harry Potter
The 5th Wave!!!
The Infernal Defices!
Chronicles of Narnia, Rangers Apprentice, Divergent and a few of the stories I'm writing X)
The Mortal Instruments! Or The Infernal Devices.