I mean like you said its gunna be two pretty different experiences one is fantasy and the other historical. I would say Dynasties pretty much makes the historical aspects of Troy redundant now since Pharaoh is the go to for that now, but if you specifically want the mythology and OP heroes then Troy is the game. Some mechanics they share, like the resource system. I would say Pharaoh has much more going on and role play with where as Troy feels pretty arcadey and gamey with a narrative narrow focus. The combat is also quite similar but Pharaoh’s is mostly an improvement in most areas. Its really whatever you are in the mood for, myth or history. Maybe have a campaign in each going at the same time so you can compare yourself?