I tend to work in cycles, using metal, wood and clay, but always returning to welded metals (either stainless steel or aluminum).  Most of my sculpture is in the hard-edge non-objective mode, but every so often the wish for humor evokes abstracted figurative work.  With the exception of bronze casting, I have in the past preferred to do all the actual construction myself.  I find that the feel of the material and the handling of tools is as much a part of the joy of sculpture as the originating of ideas.