Autodesk Inventor, Solid works, Fusion 360, Netfab. And my most used and favorite program, Solveering Instep V2. Having this program has been a godsend for converting STL’s to STEP files quickly and easily.
Autodesk Inventor is a great CAD software.
3DS Max 2013
Solidworks
Openscad
OpenSCAD and Freecad. I do mainly functional prints. OpenSCAD is excellent for designing parametric modules. Freecad parametric modeling is still a bit cumbersome, but it is very good for general geometric modeling. My work flow often involves parametric modeling in OpenSCAD and then importing into Freecad for finishing and visualisation.
MasterCam cause I need to be able to run toolpaths for my cnc’s.
OpenSCAD because the files are plain text, it’s easy to make designs parametric, the tool is cross-platform (Linux), and it’s free. And Thingiverse Customizer is built on it.
NX because it’s way more than just parametric CAD
Mostly vi but sometimes Emacs if I need macros to place supports. The macros make it much easier and then I can pipe the resulting gcode //dev/null and enjoy my finished print.
Lol, JK! Laugh and live! 
OpenSCAD. I am a programmer and OpenSCAD feels like the programming environment that I am use too!
Solidworks…
Freecad
FreeCAD and Blender, the latter having a crazy amount of modelling tools.
Autodesk Inventor 2015. Started in AutoCAD, then moved to ProE, didnt like any of them. Fel in love With Inventor in 2007 refuse to use anything else since then. Tried few of the free solutions, namely Blender and Sketchup, wasnt satisfied. Blender is too userhostile, sketchup too simple.
Autodesk Inventor 2016. Have been using the Inventor products since 2009 and they just work. Powerful, easy to use and great service to back things up. From complex automation to simple 1 model stl files it does it all.
Freecad
no inventor?
@Phillip_Ramirez I just put the programs that I was familiar to.
well there is autodesk autocad, autodesk inventor, turbocad, solidworks. then freecad