Bring Your Own Thought Framework to a discussion. It gives you home-field advantage because you're naturally more comfortable within that framework, easily able to defend your arguments and look smarter doing it. If you are forced to operate in someone else's discussion framework, you not only have to wrap your head around their outline for the discussion, you also have to adjust all your own points to fit into the new framework, a serious disadvantage.

A little time prepping for a meeting or discussion will go a long way to making it productive for you.