Been on a science fiction kick lately...
Just finished Ancillary Justice by Ann Leckie. It was complete garbage, unfocused, characters who are incredibly inconsistent, non-chronological storytelling when it would have worked better in chronological order, and internal inconsistency of worldbuilding. I'm also fairly certain the editor was retarded or incredibly baked, due to all the grammatical errors and sentence fragments in the published book. I'm baffled how it won five awards.
In the middle of The Left Hand of Darkness by Ursula LeGuin. Stopped for a bit because some of the worldbuilding is pretty decent and the prose itself is fine, but a few of the things in the text broke my suspension of disbelief. (No rape or war whatsoever when dealing with a group of clannish, tribalistic humans, solely because they lack physical sex at almost any given time? Them not having a concept of human unity or oneness, despite their forming various groups and countries, using language, being social, and having communal farms? Bull. Shit.)
Just started Asimov's first Foundation book. Liking it thus far, but I'm pretty early in, so it's a bit premature to say anything else.