Guild for sure. Guild has best plunder but less strength. With spy buildings the higher the stats of the building, the lower the plunder is pretty much
according to wulf's building guide (which i suggest you look at) an completed sos hansel makes better gold. ...but an incomplete one does not. i never got over how weird that was.
My acct I have had for 3 years now is on my Facebook only. This acct is on my iDevice and mochi. If I linked this device to my older acct will this one still be accessible through mochi?
it is weird. but true non the less. once about 2/3 of your guilds are converted to lvl3 sos, your plunder recovers from the dip.
SoS/volary may make more overall, but nothing compares to the guild hansel's earnings/bil cost to grow the kingdom. That is, the guild hansel earns the most gold per bil spent.
^true and worth noting. if you are in a hurry to get all 50 lands, stick with guilds until you get there.