Which combat system would you prefer for the next Civ?

[ChaosArbiter]

I don't consider it part of the combat system, which is the Attack/Defense + Firepower/HP setup. However, losing a stack with the first loss seems to be a forerunner of the Civ5 1 Unit/Tile bit, as even a single loss is far more crippling than it would be in Civ3. I also don't like the stack-loss terribly much. I still like Civ2's combat system more than Civ3, Civilization, and Colonization's (the old one, I guess - I didn't know there were two versions). Haven't played 4, but from what I've seen, I still would prefer 2's.