There can be only one of one type of Great Wonder in a game 
So you'd need lots and lots Great Wonders, each with a different name.
Making settlers buildable won't do anything, the small countries might want to settle in the open spaces, but the ones who raze the cities probably won't. So you got Russia destroying a city and Belgium sending a settler through enemy territory to occupy the free space.
Although this might be caused by the high resistance chances. The AI captures a city and sees that it'll take a lot of turns and a lot of units before the city is rid of resistance and might become valuable and thus disbands it.
The only thing to counter razing is making sure that the AI wants to keep cities it captures, ie, not be above the optimal number of cities, almost no corruption, etc etc...
This in turn makes the human player stronger since he is better at keeping cities and making them productive.
So you'd need lots and lots Great Wonders, each with a different name.
Making settlers buildable won't do anything, the small countries might want to settle in the open spaces, but the ones who raze the cities probably won't. So you got Russia destroying a city and Belgium sending a settler through enemy territory to occupy the free space.
Although this might be caused by the high resistance chances. The AI captures a city and sees that it'll take a lot of turns and a lot of units before the city is rid of resistance and might become valuable and thus disbands it.
The only thing to counter razing is making sure that the AI wants to keep cities it captures, ie, not be above the optimal number of cities, almost no corruption, etc etc...
This in turn makes the human player stronger since he is better at keeping cities and making them productive.
Anyway in a game he had described involving India he discovered that If you have cities with closely overlapping cultural borders that cause their cities to "lose" tiles to work, especially the first ring,it REALLY pisses the AI off. I am thinking specifically of Gibralter, and Tangiers / Valencia / Madrid; they are right on top of each other! Those northern border cities with France are in the same boat I think. In three games so far either the Allies have declared on Spain like turn 1-2, or Spain has declared on them...I don't think that is an accident. If you played with the city positioning I bet it would help. If you ever do the larger map version that would help with things like this immensely. Now realize, it can be a tool to use in your favor. Copenhagen's pressure on German cities will almost certainly cause a war, which would follow the history of the War. I also think there might be one or two cites in Manchuria that 'press' on Soviet cities and that may be contributing to the early war,but since it always seems to be Japan declaring I still think the sub issue is the problem there,not aggresiveness.
Nothing happens in France itself except about 10 air raids; I don't do as well as I had hoped but I do shoot down 3-4 with flak. I reinforced both the German and Italian borders and they basically left me alone. I should note here that the first turn of a loaded game the AI has yet to set Air Superiority missions so ou have a free hand with your bombers for ONE turn...I tore Germany's central road net up just to prove it to myself but that was cheating. 
DON'T DO IT! 
Oddly enough when turn two rolls around I am informed that due to Spanish attacks I am drawn in by MPP!! Must have been the Spanish navy getting in pre-emptive strikes. I notice Poland took Stettin during the between turn phase but Germany took it back and Lodz too on their first turn.
