Another word for formally discuss is debate. Cheese lovers often debate the merits of gorgonzola, triple creme brie and gouda. Of course, they need to accompany their arguments with a taste test!
A debate is a kind of respectful, well reasoned argument over opposing points of view, although tensions can run high and voices can be raised. In fact, the verb evolved from the Old French debatre, meaning “to fight.” Most formal debates, during a political campaign for example, keep the battles to a minimum. But if you find yourself in the midst of a debate between a Red Sox fan and a Yankees fan, things could get ugly!