Just to clarify, neither 3ds or obj is the file format of one "of the biggest 3D packages out there." Without getting into the boring history, 3ds is the file format of a predecessor to 3D Studio Max (and dxf is the predecessor to the predecessor!) and obj is the file format of a predecessor to Maya. Virtually nothing actually imports .max and .mb files (3D Studio Max and Maya, respectively) directly.
My question springs from the fact that regardless of fbx file format containing more information than 3ds or obj, Wings3D does not. Wings3D is a polygonal modeling tool, with support for texture coordinates; no other sorts of data (eg. other sorts of geometry, lights, and cameras) are supported by Wings3D. So, unless Motion Builder cannot import 3ds or obj, exporting directly to fbx is kind of pointless.
My question springs from the fact that regardless of fbx file format containing more information than 3ds or obj, Wings3D does not. Wings3D is a polygonal modeling tool, with support for texture coordinates; no other sorts of data (eg. other sorts of geometry, lights, and cameras) are supported by Wings3D. So, unless Motion Builder cannot import 3ds or obj, exporting directly to fbx is kind of pointless.