Gentlemen,
From a gunsmiths perspective, Taurus is a pain in the butt brand to work on. It is not that they cannot work and be good little guns, however, if anything breaks or wears out, it is a stone cold B*tch to get parts from Taurus. I ordered a trigger rebound last year and still haven't got it.
The internals of a Smith are easier and lend themselves more towards customization. They just do. Smith is a better company to deal with.
I do work on Taurus. I just don't like dealing with their customer service. And the quality of the starting product is just not there.