Txurce
Deity
Another alternative is I could reverse the bonuses. Population Growth could provide say... +20%in all cities... while a Sanitation System makes people happy. Wide/conquest empires do not prioritize aqueducts so this would shift the effects more in favor of tall empires.
That makes sense to me. It's worth a try and see how the AI does with it. I am already getting some hair-raising results (posted elsewhere).