I work in an Enterprise UX environment (designing apps for use by my company). We often get feedback that seems heavily attitudinal from many of our employees. Much of this feedback seems to be based much more on preferences than impacting the ability to accomplish tasks (e.g. "I don't like the name of this button", "I would do this instead of this" etc.)
I have taken the stance that we do usability testing based on our most important tasks with the application, and let that guide our design (behavioral over attitudinal).
Some of my team seems to put a lot more stock in this preferential feedback than I do. I would rather base most of my decisions on the actual behavior, than attitudes.
So my question is, does anyone have any tips/ideas/validation for pushing back on design feedback that may be completely off-base?