which CAD & analysis Software Specialization is oftenly required or oftenly used in Mechanical Industries?

CRAZY GUY asked: For example Modelling softwares such as SolidWorks,CATIA,CADian,Unigraphics,Pro-E …..etc & also Analysis Software such as ANSYS is also there, so Which Software is mostly used when it comes to modelling & Analysis.
or Which is the Software that a Fresh Mechanical Engineer Who is looking for a job in designing Field should expertise in [...]