What a great reading year so far... i envy you for having many of these books still fresh in your mind. Definitely agree with you on Rama and Cixin. Loved them both. I will keep in mind the fan fiction book in the Three Body universe. I was aware of it, but didn't really trusted it. Would do me good to return to that universe.
I will also add Miéville's book to the list. I've been trying to get into Miéville, but didn't work for me. Will give it another try.
I also loved A Canticle for Liebowitz so enjoy!
On the other hand, I do have a question. You mention Ender's Game, another of my favorites. How about the rest of the Ender saga? I don't even remember how many books there are. I remember waiting years for Card to write the final novel. Highly-recommended reading if you haven't delved into the whole saga.
Sorry for the long comment :)) Looking for something to read is sort of an obsession for me. Many times I despair - if I've read all the good books, maybe I've overstayed my welcome here :)