On another Mac discussion board, one individual stated that only about 10% of Mac users use SuperDuper! and Carbon Copy Cloner combined.
I don't think a survey of FTM responders will be particularly meaningful, because
- the body of Mac users it would engage is pretty minimal, and because
- the technical competence of the responding population would likely far surpass that of the general body of Mac users and lead to skewed results.
(Surveys may be started only by mods.)