Well I see that you did not receive any answer

I can just repeat what I told some time ago
Hope it might be of some help
In my opinion DXSTUDIO provides absolutly the best game engine architecture around
From this point of view it can be considered as the Window brother of the fantastic Unity
Maybe it is still lacking some artistic features , I am not definitly an expert , being more interested in the programming and in the "ease of use " side
Some programming functions should be also added
The comunity and the support is excellent
The only flaws are
The import \ export
I have had many problems with .x and .fbx files
It seems rather slow but it is just an impression
I did not make comparative tests

For the above reasons I decided to remain with 3dgs for the time being , but it was an hard decision