[pjmlp]

Well, Autodesk products are market leaders, probably Catia is the only alternative.

[vetinari]

There are actually many CAD packages, with different levels of complexity, from Siemens NX to VariCAD, plus myriads of domain-specific ones, like ArchiCAD.

For example, most of our customers prefer MicroStation, for some reason (no, we are not Bentley shop ;).