What drives demand for SQF vs. other GFSI recognized bodies?
A mix of regional and customer preference - SQF seems to be significantly more prevalent in the US, but that may be because the US retailers / major brands have a preference for SQF. In the UK we see the same effect with BRC.
What are some common questions you've had auditors ask employees that you feel could have been answered better?
Honestly the biggest issue we have, even with well trained employees, is the "I'm going to panic because the auditor is asking me a question" problem - I've seen people instantly forget things that they know well enough to recite / do in their sleep.
I guess it's a bit like the panic that afflicts a lot of people when they sit and exam in school.
I'm not intricately familiar with SQF, but is there not a requirement for compliance with local regulations (e.g. FSMA in the US) inherent in the standard?