Bushface
Deity
I usually acquire sufficient EPs to see my opponents' cities without having to use the slider, at least until the other civs start buiilding Security Bureaux. Then before I invade I send in my spies, not to sabotage buildings but to destroy developments on resources. Knock out their iron and copper mines in the early game, or oil and aluminium later, and their military production is crippled: knock out their luxury resources and they get angry citizens: knock out their food and they starve. None of this costs much in EPs compared with the cost of sabotaging buildings. And a city with angry citizens is ripe for a spot of fomentation of unrest. Make 'em suffer, then step on them.