Hi, both BBC and UL does big chances to Cyrodill. What this mod do around it? Besides the two City Plugins, is it recomended to avoid some of the options of RAEVWD? I'm thinking of diferent heigth lands, extra placed or removed statues/stones/ruins, etc. I'm already using it, and it's 11 out of 10, but still want this extra clarification...
It seems that you are a little confused about what RAEVWD does, but then that's why you asked for a clarification
Firrst, RAEVWD doesn't affect the landscape at all, only the objects placed on it. Furthermore, RAEVWD doesn't place a single object in the game, it only makes lot of objects
possible to see in the distant view. To actually see them, the distant objects must be placed into your game, and that is done by TES4LODGen. So after installing RAEVWD you must run TES4LODGen. When TES4LODGen runs, it reads your mod list, finds out exactly where objects are placed and uses the files from RAEVWD to create those objects.
So with BBC and UL making big changes, TES4LODGen will see this, and place the distant objects correctly according to those changes. Thus if a UL mod moves a statue (or adds a new), those will be placed correctly by TES4LODGen, but only if you have installed distant statue meshes with RAEVWD.
You may still encounter distant objects floating in the air, or partly buried. This is not because the objects are incorrectly placed, but because the distant land is incorrect. Unfortunately there's no solution to this.