I have heard about Rashi that he measured his words very meticulously and that consequently every word he chose to write in his commentary is important for understanding his view. There are even rabbis who's daily lectures in Yeshiva are called "Rashi Shiurim", because they are devoted to understanding every last bit of this great Rishon's written words.
Are other Rishonim's commentaries given similar treatment, or does Rashi stand alone in this regard? Are there any sources that discuss the exacting nature of the Rishonim (aside from Rashi), or is it tradition?