Rules Version 3 vs Rules version 4

[plloyd1010]

What are people's experiences with rules version 3 vs rules version 4?  Is one markedly superior to another (in your view)?

The 4th Ed rules and charts fixed a lot of little problems from the 2nd & 3rd editions, but added a couple of its own too. Generally you should go with the 4th Ed. set. The biggest problems will come when there are 2nd/3rd Ed games which need hills to be cover. ( Pursuit of 2nd Armored comes to mind, as well ass a couple of Battle of the Bulge scenarios.)

I Also don't much like how APCs got invalidated in the 4th edition.