I haven't played '06, I was planning on getting '07...
The biggest problem with '05 is, if a guy is open for a pass, he takes forever to catch it and set up, and by the time he gets it, he is covered again. It is basically impossible to hit a guy cutting; it makes the game completely deteriorate into 1 on 1.
Is '07 better in this respect?
I also heard they were working on animations - at first I heard some things that sounded good, that players wouldn't be as locked into robotic animations anymore - in recent versions, you'd pass to a player and wouldn't be able to do anything with him until he'd finished the catch and set feet animation. The controls were very unresponsive and non fluid. Will this be improved? I saw one of the writeups just now that said now players will have to set their feet before shooting - is that just going to be more delay waiting for an animation to finish before you can control anything?