I was under the impression that this decade has only just started. However, Gumshoe Carl on Crimespace points out that it is actually nearly 7.5 years old, and asks what is the "Most Influential Crime/Mystery Novel This Decade?" (so far).
Good question. Most influential, note, not "best". Jude Hardin says The DaVinci Code, because it "spawned a slew of copycats, the same way Silence of the Lambs did in the 90s." Dave White agrees, but adds LA Requiem, by Robert Crais. Good, yes, but "influential"? And does it stand out from others in the series? LC Fraser also agrees, but says Silence of the Grave (Arnauldur Indridason) is her favourite. I’d have to agree that this is an excellent book, but "influential" in the "stand-out" sense?
Paul Sammans breaks out and suggests Sleepyhead by Mark Billingham. I didn’t like that much, it is well written but too sadistically gruesome, and cannot see that it is/was an "influential" book, it is good but deriviative — but it is certainly better than DVC, in common with most other books. Gumshoe Carl then comes clean and says his choice is The Guards by Ken Bruen. KB is a, perhaps the, leading-light author of Crimespace, but I’ve never read him (sorry, Jenny D! I keep meaning to, though).
A few more suggestions: Karen from AustCrime suggests Peter Temple’s The Broken Shore; whereas Thomas Bauderet goes for Marc Behm’s Eye of the Beholder (I can’t agree with that one, as I’ve never heard of it, so it can’t be that influential — at least I’ve heard of all of the others even if I haven’t read them all). Jack Bludis selects Mystic River by Dennis Lehane — I liked that one, and several people agree with the choice, though again I would not agree with the "most influential" tag. David Magyna chooses Every Secret Thing by Laura Lippman, which as regular readers know I think cheats, so I wouldn’t count that.
So there you have it. "Most influential crime novel of the decade" so far is, according to Crimespace voting, one of DaVinci Code, Mystic River, The Broken Shore or The Guards. Any advance? Although one should not lose sight of the current UK bestseller, Richard and Judy pick and recommendation of Uriah/Norm, Jeb Rubenfeld’s The Anatomy of Murder, I think The Tenderness of Wolves (Stef Penney) will sneak up on them all as a late winner.