The current polarized media discourse offers enough suitable material (also) for linguistic analysis. Particularly interesting is the question of expressiveness, which is also asked by the general audience: who is more emotional? Who is more "unjust"? Who is more offensive? In the paper, the author is looking for a suitable scientific method to "measure" the linguistic quality of expressive texts. She works with a rich sample of approximately 500 opinion texts (editorials) from selected liberal and conservative dailies in Slovakia. She analyses them using tonality/sentiment variables, emotions, petrification rate, and linguistic means of expression. She answers questions such as: 1. what is the sentiment of the examined texts towards their object (positive, negative, neutral); 2. what emotion they are built on (anger, disgust, happiness, fear, sadness, surprise); 3. what is the degree of petrification of the expressions (petrified, original); 4. what means of expression they use (allusion, irony, image, adjective).