The foolish chasing-down-routers pathing is still there, but from a cohesion standpoint I think that it's markedly improved for all units. It's still not as good as it was in RTW (which I actually think has the best cohesion of the games so far) but it's definitely a step up. Charging still seems pretty wonky but at least I can get most of my cav to line up and hit the enemy at the same time.