Please skip me this time guys. I am going to recommend a city 3NW of Athens on the hill. If I learned anything from attempt #1, the AI likes a safe approach to attack our city, and those mountains look safe for them. I am not sure if it will work if they come from the east. With hoplites we are going to win on defense anyway, so let them come.
It may be possible that the AI may not attack our hoplites in the open until they get swords. They will attack them in the cities.
Whomp, at what point did the immortals start attacking someplace other than SDC? It will be real helpful to know what changed their program. I suspect there may have been some encroachment on Sardis. I believe the AI will feel threatened by moving any unit into a tile on the border of Sardis, not just into their territory. If there was some other trigger I would like to know it so we can avoid it in the next game.
Sometime I will play 10 more of the old game to see if I get the same results.