Autocad is parametric these days
as for any other package you can do with GRIP in UG NX what you can in Autocad with Lisp
the only reason to use Autocad in my honest opinion is that even with 3D Manufacturing and PMI trying to make drawings obsolete somewhere along the line the end result seems to be seems to be billions of people asking for a .DWG or DXF which you might as well have done in autocad off the bat rather than sift through layer after layer of 3d lines that have been flattened on the output of a 3D package
ps theres a lot of hooky software being used at home around the country when i worked as an applications guy for Dassault the general policy was if its not being used commercially then the issue wasnt worth chasing in real terms, im sure autodesk with their gazzillions of users might view it differently as pretty much any engineer has some dodgy software somewhere in their hard drive and is probably making a few quid somewhere with it