Hi neo, just a bit more information...

> the question is which one of the two make better use
> of exported geometry from MoI?

Check out a recent discussion on the comparision here:
http://www.3d-coat.com/forum/index.php?showtopic=2724

One thing that is pretty interesting about 3DCoat is its "voxel" mode, which works rather differently than a displacement map type method.

If I understand things correctly, when working in that voxel mode, it does not really rely on subdividing the base polygon geometry to add further details - instead basically the imported data will just "turn on" an initial set of voxels and then the imported geometry is not used anymore and you work with manipulating voxels only after that.

So when working in that new voxel mode in 3DCoat, there is probably not any advantage to having an initial sub-d model versus a MoI-generated model. In other words, that new mode of 3DCoat may be more generally friendly to MoI exported data.

When you are done manipulating things in the voxel mode, then it sounds like you convert it back into polygons by using the retopologizing tools.

That mode in 3DCoat is a pretty different way of working than ZBrush, and it may be an easier way to incorporate any kind of MoI model as the base object.

- Michael