I am so bad about reading the first few posts and the last few posts of a thread. So, I don't know if this thought was there, but I might as well throw it out there just in case....
If I find myself in a situation where I can feasibly get both Stonehenge and the Oracle, I find it a great benefit to have them. There are lots of factors that come in making that kind of determination right off the bat, though, including placement of my first city.
The reason why I like this combination so much is for how it increases my rate of producing a GP, particularly a great prophet. When I'm able to build those 2 wonders, I've usually end up getting a greap prophet before other civs even generate their first GP period. Early in the game, the prophet is my perferred grear person to have as their joining the city allows me to rapidly increase my gold. That extra gold allows me to expand quickly without having to drop my research rate below 100%.
Now, that that and add in a few other nice details about this early combination. I'm running at 100% research and getting the Oracle gives the free tech. This has usually been enough to give me the tech lead throughout my game. Furthermore, with the rapid expansion I am able to partake in, I can spread cities apart a goodly amount of distance and know that Stonehenge is going to grow my borders. This has been quite helpful in blocking off the territory that I want for further expansion.
By the time that I've settled enough cities so that I'm seeing a negative cash flow, I've already got Code of Laws and courthouses on the way to get me positive again....and ready for a second round of expansion if I have the land available. If not, then I'm in the black enough that I can begin to build my army for an early war for either more expansion or the gathering of gold through war. What's more is that by the time that one city of mine (my capital in 99% of the cases), it's big enough that it's producing pretty much anything I need in a relatively short amount of time. So, it naturally, becomes a wonder magnet as I discover a tech that allows for a wonder and I've got nothing left to build, but the wonder.
To make this work effectively for me, the key has been my initial build order. I've got to be flexible with it, but it usually goes like this:
1. Warrior (if I don't play a civ that starts with Mysticism).
2. Stonehenge (allows for growth any me extra starting unit time to scout for land, goody huts to hopefully get things started quicker with another settler)
3. Settler (to start my expansion)
4. Oracle (While this is building, the new cities are working on settlers to expand and warriors for defense as well as workers).
5. Worker and whatever else I might need.
Another thing that's good about this build order is that it really doesn't take me off my game plan too terribly much. Worst case, is that I don't get one or both wonders. Well, as trying as that might be, I do get the extra cash from working on them, which I can use to still allow me to expand quickly while never hurting my research rate.
Now that I'm playing warlords, I've been experimenting to see about incorporating the Great Wall into this initial plan. So far, the Great Wall goes into one of my secondary cities and the usage of the Great Engineer that it produces to start cultivating one of those cities into a super science city.
