I just tried a game in Monarchy. I was the Romans. I believe the higher up in the game difficulty levels you go, the more you have to focus on your Civs specific ability.
In my case, Rome is war like and commercial. I built alot of roads and ALOT of military units (with barracks in my cities). I allowed the nearby Iriquois to build up nice cities with mines and temples... and then over ran them with military units. The only thing that REALLY sucked was that I had no iron and no one else would trade. Still, the onslaught of Vet. Archers and Warriors did enough for me to threaten my neighbors into paying with Technology and Money... so I could build a bigger military. hehehe.
Ironfang
In my case, Rome is war like and commercial. I built alot of roads and ALOT of military units (with barracks in my cities). I allowed the nearby Iriquois to build up nice cities with mines and temples... and then over ran them with military units. The only thing that REALLY sucked was that I had no iron and no one else would trade. Still, the onslaught of Vet. Archers and Warriors did enough for me to threaten my neighbors into paying with Technology and Money... so I could build a bigger military. hehehe.
Ironfang