well, my all-time favorite is Jane Eyre.

At the moment I am also reading Hutton's Triumph of the Moon: Micca, I would be interested to know what you think!

other favorites (repeating those of others in many cases):

fiction:

Atlas Shrugged
Possession
To Kill a Mockingbird
The Mists of Avalon
Children of Light by Robert Stone
Harvest Home by Thomas Tryon
Perfume by Patrick Suskind
The World According to Garp by John Irving
The Stand and 'Salem's Lot by Stephen King
Pippa in the Land of Winter by Richard Grant
Waking the Moon by Elizabeth Hand
A Family Madness by Thomas Kenneally
Binding Spell by Elizabeth Arthur
The Witches of Eastwick by John Updike
Sailing to Sarantium by Guy Gavriel Kay
Practical Magic by Alice Hoffman

stories by F. Scott Fitzgerald, Elizabeth Bowen, M. John Harrison, Jane Yolen, and many others

poetry: W. B. Yeats, Wallace Stevens