My most favourite book? "The way of the empty hand" would be it. However, thats no novel its a philosophical book. Hm... favourite novel... "The Soulforge" comes to my mind, very nice book. I´ll edit this post if something better comes to my mind.
Ah! The Illias, Odysse and Aeneid were very good books too, though I never read them completely, Lord of the Rings is very good too, same as Dragonlance Chronicles and Legends.