I loved "The Bourne Identity", directed by Doug Liman. He held the camera as steady as a rock while Jason Bourne (Matt Damon) was fighting, as so gave us some fantastic fight scenes.
Then along came Paul Greengrass with Supremacy and Ultimatum.
Those movies are great, don't get me wrong, but the fight scenes are rubbish. I hope nobody spent much time choreographing them, training for them, or rehearsing them because you can't see anything. Complete waste of time.
My favourite fight scene is in the American embassy. Here's a (very small, unfortunately) still from just before this kicks off:
