I remember the horrible creeping feeling of helplessness when reading George Orwell's "1984" in school. It came over me again years later when I read Fred Pohl's "Jem". Many people think that Atwood's "Handmaid's Tale" is also a great work of Dystopian fiction. I never got the feeling of helplessness that I got from the others, this might be because I saw the film first or it might be because it is a very derivative work? There is much of this feeling in some of Lem's stories but in them there is also humour and hope, some of them even have a Samizdatz feel to them owing to the way in which they were produced.
Do you have a 'favourite' SF Dystopia? I always feel the Dystopias are more realistic than the Utopias, more attainable somehow.
_________________________
Regards,
Tielhard