Dear salesian,

If your ultimate goal is to get a PhD in accounting and be a professor, then I think you could do either program. Very few MBAs go on to a PhD program as the degree is a professional degree, so it is possible you will need to provide a good rationale in your application and interviews as to why you chose the MBA versus the MS route. Likewise, you should consider if you want to have a broad business foundation that the MBA gives you, or if you would prefer to focus your coursework in accounting only like the MS. Finally, I think you should consider applying directly to PhD programs; there are some PhD programs that do not require a master's degree first and/or you will earn a master's degree in your first 2-3 years of the PhD program.

Good luck,
Lisa