Mbo - I loved The Chronicles of Thomas Covenant. I have read all of Stephen Donaldson's stuff. Also, that's my favourite quote for the hitchiker books! As well as "Life, don't talk to me about life"My favourites are probably The Sandman by Neil Gaiman - and all of Gaiman's short stories. He does some great retelling of folk tales / fairy tales.
Also everything by Iain Banks - except A Song of Stone, which was uncharacteristically bad.
KT