I was trained as a wood/marble sculptor and glass artist back in the 1970's.
In the 90's I did architectural design with Generic Cadd, Turbocad, and Archicad.
I am learning more about Blender and Sculptris currently but have fallen in love with Moment of Inspiration 3. It is intuitive, and lets me create the shapes I visualize very quickly, and with a directness I have not seen in any other software. Wish I was as smart as the developer! It is a great product.