Burn After Reading 8/10 - The Coen's know how to do dark comedy, it's right up there if you're into quirky adult comedies. Aided by the fact that the wonderful cast buys into the well-defined goofball characters. Would have been wasted on Sandler / Carrell / Ferrell type shtick.
Up In The Air 8/10 - Should be by the numbers and forgettable, but there's a hidden twist and Clooney's performance that takes it a notch above.
Syriana 6/10 - Very heavy and poorly told political drama which should have been better. The plot is there, but presenting it as four loosely connected stories didn't work as there wasn't enough investment in the characters you're seeing. I compare with Lions for Lambs, which I thought was superbly done despite being entirely dialogue driven.