It's all about the Flow...
Flowing, organic forms are what I love in sculpture, productdesign and graphics. Smooth surfaces accentuated by clear edges.
I always try to get to the central core, the essential idea and remove everything that isn't really needed.
On the other hand there is the fascination with guided complexity, where the "simplicity" or flow only emerges in the bigger view, like a field of grain in the wind.
Software wise I mainly use Rhino for CAD und subdivision surface modelling and Houdini for prozedural design und simulation.
Beside that a plethora of other tools and applications and two 3D printers for prototyping.