Last two versions of MSWORD (with document extension docx), are very different from earlier versions (with document extension doc). One of the changes is the new interface. I would vote against the new interface, if we had a referendum about it.
I would argue that the 2003 version was already a very good tool; we became very familiar with it. Learning the new interface, as in the 2010 version, is a burden not worth accepting. What is gained by a typical user is negligible in comparison with what was lost. How would you vote, and why?