

Hmm, yeah, that one’s maybe not as strong, though I kind of look at Network Effect and System Collapse as one story (confusing because there’s a book in between them, but that one chronologically comes before Network Effect). I liked it, but agree it’s not as strong.
Favorite “all time” would have me looking through a lot of titles, but I’ve really been enjoying Adrian Tchaikovsky lately, and some of his is hard SF. Probably Children of Time would be the one I’d start with.
If you like hard SF, you’ve probably read Weir (The Martian, Project Hail Mary, others), but he’s great.
I could go on a lot, but maybe I’ll keep it there unless you want more.