I’ve read over 50 of these, if I’ve counted correctly. Like several others, I’m very fond of Canticle, The Dispossessed, Moon is A Harsh Mistress, and The Yiddish Policeman’s Union. I’d also like to put in a good word for Stand on Zanzibar, which uses a lot of unusual techniques to convey an impression of a believable, horribly crowded and stressed, world.
Sometime, I’ll get around to the few of these that I haven’t read yet.