Hi, the real difference is that Carrara is a full modeler and render system. You cant model, create landscapes, clouds, fire, particles, collision detection (hard and softbody) in Daz Studio. Also Carrara allow you to paint in 3D, create morphs, adjust meshes and a lot of things that a modeler can do.

DazStudio is like the name says: a studio. Just load a bunch of the done objects, adjust light and textures and render. The only thing thatI really like in DS is the Reality plugin, but if you dont have a very good machine or video borad, your render can take forever to render.

 

You need to think what you want to do now and in the near future: do you want to create you own models to add to Vic or Mic scenes? Go for Carrara. If you only want to create scenes with done characters, go for Daz Studio. 

Now run to get Daz Studio free anyway! You can get hexagon that is a very simple and good modeler and get Bryce too. Why? DAZ are working in a file format that will allow us to load almost all scenes from Carrara, Bryce, DazStudio inside any DAZ software!

http://www.daz3d.com/i/3d/free-3d-software-overview?home_5_btn=start

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