Favorite books can change with the seasons.But right now:

. The Adventures of Alice, In Wonderland and Throught the Looking Glass by Lewis Carrol.
. The travel books by Redmond O'Hanlon. Most recent : Trawler(fun!)
. A Song of Ice and Fire by GRRM Martin. Last release: A Feast for crows

It's no use , it's as hard to choose a favorite book as it is to choose a favorite colour. My whole life collection in my book case.Too many favorites. I remember my first favorite book ever though : The Little White Horse by Elisabeth Goudge. And it still is one of them.