I would really like Mark to tune in here.

The example I used is good because my Rival only has Mafia defence.

I've had this rival for a week now, he hasn't lost a robbery on me, even though my defence is 3K more than his attack. Then I lose around 1/3 or 1/4 of my robberies on him and his defence is mafia defence only. The difference in total att/def ratio is the same for both of us.

I probably need to start righting down some rob results.

The other thing that other people might be able to relate to, is the inconsistency when fighting rivals. Its much more evident around level 80-100, when you see that your 2K? above the rivals defence the fight result shows - then you happen to lose.

Maybe it has something to do with base stats? but I would really like Mark to give a definitive answer on exactly what building defence does. I cannot simply dismiss the evidence I gathered in the last week. We are both same level if that matters.