I just want start a discussion about polity and account-development, also pro and cons about both.
+ Defense up to 300%
+ no plunder store below 50%
+ Starttown can't be captured
- offensive just 30% power
+ Normal army-power
- no protection of starttown and ressources
After some research and some accountdevelopment what will happen?
You can research a stash and so you are able to protect all of you ressources for a low price, even with palisade and watchtower you can raise your defencepower. With some knowlege no attacker will win, and if he win he won't steal some of your ressources. So no attack is worth to do because attacker most time needs more ressources to rebuilt his army as he will plunder.
Now lets look at the player with leaderism. We know attack against player with communality will be expensive with less rate of plunder. To raise your chance to win vs defensive (with additinal towers, palisade) you must buy many many hunter, braves, archer, rams or what ever. Most of these buildings had bad effect for your cultures wich even means a smaller domain and a smaller chance to expand. A bad setting to say a war-nation should have less chances to expand.
So it seems leaderism is just a good choise if you have some multiaccounts or known inactive accounts close to you. So you can farm them but most of the time you don't need ressources.