Cura, Slic3r

When I started Out I was using Cura 15.04.6. Well Still using Cura 15.04.6 It is still the easiest to configure and use to slice the models.
However I still use Slic3r It has features that are not available in Cura. Though this is not the extent of the programs that I use and have tested.

I have downloaded every Free Slicer from every manufacture to test them all, the other One I like is MatterControl it too has its assets.