My personal favorite? I’ve always contended that Lolita by Vladimir Nabokov has the best opening of all time:
Lolita, light of my life, fire of my loins. My sin, my soul. Lo-lee-ta: the tip of the tongue taking a trip of three steps down the palate to tap, at three, on the teeth. Lo. Lee. Ta. She was Lo, plain Lo, in the morning, standing four feet ten in one sock. She was Lola in slacks. She was Dolly at school. She was Dolores on the dotted line. But in my arms she was always Lolita.
Lists like this are always subjective, however. What book do you think has the best opening line? Tell us in the Comments!