Inspired by Kenmo, I was curios as to what everyone uses here.

I've been using

Mod Tools 7.5 - Making the basic model shapes and now that I've found the 3D paint part of it I'll be using it for that.

Sculptris - For details on the models. 

Wings 3D - As a file format converter.

Meshlab and UV Mapper - To map and clean

Daz Studio 3 - Once I get to the point of setting stage, lights and cameras for my models.

I have quite a bit more installed than this like Lightwave, Silo and Houdini but just keeping them around to learn something new from time to time. Since I'm not experienced with those others yet and trying to get to know one at a time, I've just been sticking with the list above.