I like to get myself into a new kingdom,gain their trust (lots of experience,battle skills and big gold spending etc) ,gain as much access and insight as possible and eventually get sitter rights to the duke(s) or even king that is low on time.The accounts with big number of troops are also a good sitting choice.
And then a few weeks in switch to all defense ,stack def troops untill max capacity and turn against my new team.If i'm sitting some players then send all their troops(off or deff) to raid me in small numbers(20x1000 troops for eg ) .That's some juicy cheap def points right there 

Then i send an angry message complaining for the attacks.Usually they blame the other dual/sitter(one time they kicked and catapulted a sitter haha).Untill they figure it out i'm sometimes able to sit another poor soul who's short on time and do it again haha.
When the drama is over and they figure it out my lies and deception the fun part starts.I love a bunch of angry noobs sending their armies in an uncoordinated manner against my villages,with little to no faking at all.Slaughter,slaughter ,slaughter.
Since i cannot do that to preformed kingdoms it's usually a very weakly organized kingdom and usually i manage to kill their armies.Of course they finally adapt and train enough troops and manage to destroy me by sheer force but that takes a lot of time and it usually weakens them to the point of irrelevancy. Size doesnt matter,one time i was against the no. 3 kingdom and managed to resist untill 1 week before endgame 

Anyway,i'm a good teacher.Those who go trough the ordeal against me become wiser in every aspect of the game .And i have fun!Win-win i would say.