I voted unit. We are at war ,and we need more unit's eventualy ,and these need to be build somewhere.Olympia can be a fairly productive city in the middle ages if managed well ,but i don't think we financialy gain much from it ,as it's a slow growing city ,and it need's a lot of irrigation's to grow constant.
It has a 2 foos production /turn at this moment ,we can increase that with 3 if we decide to support the csettler in another city.Once that is done we need a settler that constantly improve's the terrirtoy around the city.Then we'll have a good productional city.