I'm giving Christopher the last slot, because on an emotional level, Day of the Vipers was the most dramatic, impactful Star Trek book I've ever read. But Orion's Hound's, and Ex Machina grabbed hold of me intellectually and ethically, and just didn't let go, and when balancing emotional vs. intellectual impact, I think I'll give my rational side the prize.
I feel, from reading both Ex Machina and Orion's Hounds, that at least when it comes to social issues, the things that matter to me are the things that matter to Christopher. So often, reading these books, I just wanted to pump my fist in the air and say YES!!! Not because of any great action sequence, or cathartic emotional moment, but because of some quote relating to diversity, or peace, or reconciliation.
I went into Orion's Hounds thinking it would be some grand epic science adventure, that would be enjoyable, but enjoyable solely on a grand epic space creature level, causing me to marvel in wonder at the idea of what grand forms of life could be out there. And y'know what? It did. But much more importantly to me, it showed me concrete examples of diversity at play. It showed me the nitty gritty of people very different from each other living together, and finding ways to compromise, and find their similarities and... I'm getting the shivers that I get when writing about things that really matter to me... and reading Orion's Hounds gave me those shivers too. From the diversity in Titan's crew trying to work together, to the seemingly unsurmountable task that Deanna and Riker et al had with bringing peace and reconciliation between the jellies and the hunters. I found it so moving. I kept reading quotes from it to my friends and teachers (I was visiting my old college while reading it,) and they couldn't believe it was a Star Trek book. Parts of it sounded like it came from lectures and textbooks from my Peace and Justice class that I took last year. I plan on giving the book to my peacemaking buddies to see what they have to think about it. I brought 'The Buried Age' with me on the trip, but it got "borrowed" by the landlord of someone I was staying with (long story) so now I have to wait for it to be mailed back to me. I'm really curious now what I'll get from it. (Please don't tell me). I was so surprised by how relevant the diversity and peacemaking stuff was. I wasn't going to expect it from The Buried Age... (I'm expecting epic ancient civilisation, exploring the distant path of Star Trek stuff) but after Orion's Hounds... I'm really not sure what to expect. I'm sure I won't be disappointed, whatever there is.