i'm indifferent to an AI with the statue of zeus, as long as they aren't on my border. if they are, i've found that buying their luxuries for GPT keeps them content. and when they do eventually declare war thanks to their stack building up, it's free promotions for my knights/cavalry.
if they aren't on my border then i know that they'll be just that little bit better than AIs usually are when it comes to alliances and wars.