It really depends on what your goal is: if you want to make buildings, cars and other man-made objects and you need precision, 3D-modellers is what you need. But if you want to make organic objects like rocks, people, animals and so on, sculpting is an easier way to go(nowadays). The difference is that with 3d-modellers you can keep control about the polygons you are creating and with sculpters like ZBrush you don't. As an engineer which I am, it was for me very easy to use a modeller like Rhino3D, because I got precision, but to use a sculpter like Zbrush it was something completely different (a different cookie, like we dutch say): you need to have some artistic skills and to let the urge for precision go.

That said, I like Zbrush very much and it has learned me a lot of things an skills. Today for me Rhino is for work and Zbrush is for fun/

best regards,

Bopper

-How can you improve things when you don't make mistakes?