What have you heard about Cornelia Funke books?

To whom would you recommend Cornelia Funke books?

Which of Cornelia Funke's books have you read?
(check all that apply)
The Thief Lord
Dragon Rider
Inkheart
Inkspell
Princess Knight
Pirate Girl

Which of these books is your favorite? (OR if you haven't read any, which are you most likely to read?)
(choose only one)
The Thief Lord
Dragon Rider
Inkheart
Inkspell
Princess Knight
Pirate Girl