For work, when I have to do 3D, I use:

Silo
Modo
ZBrush
Topogun
UVlayout
UVMapper
Photoshop
Poser
Phi builder
PMD editor
EasyPose Underground

For work, when I have to do 2D, I use:

Manga Studio
Anime Studio
Photoshop

Additionally, I own versions of Hexagon, Carrara, Vue, Painter, Sketchbook Pro, 3d coat, Rhino, Wings and Blender.   My opinions on these vary depending on how long it takes to do basic actions, with Hexagon (a program I used to be the moderator for here) trailing - I hate having to validate nearly everything I do, most apps just let me do whatI want to do without me having to re-confirm.