'On The Road' - Kerouac seemed a fantastic writer when I was a kid in the 60's but I just tried to re-read it and nearly fell off the bog with boredom.

All Dickens' stuff - he was a serial writer for (I think) the London Gazette and it shows, obviously got paid by the thousand words and never lost an opportunity to use a thousand meaningless ones where one good one would do.

Asimov's 'Foundation' Trilogy - sheer hard work.

But I WOULD re-read 'Birdsong' or 'Rebecca' (and have done).