I have Carrara  5 Pro (still learning), Silo, Wings, Vue 5, Bryce and Terragen.

Now if you want easy detailed landscapes, to me there is nothing that touches Vue. That is a personal preference, Carrara can do good landscapes, just not as easily as Vue. Carrara is a more complete package obviously. I model in Silo, Carrara and Wings(hey it's free and was the first 3D package that I could get something out of without pulling my hair out), but landscapes are what I got Vue for and have been very happy with it. Love Carrara too, for different use.

Who knows what carrara 6 will be like? Maybe it will grab a lead over Vue.

Graphic Observations: Many problems can be solved by reading the manual Not all answers are equal Some problems don't need answers