Oral exams are better than written exams

Everybody has a different opinions about this.

On the one hand, exams oral help students to lose the fear of talking in front of a whole class, and is better and faster talking, so I can finish your exam at time

On the another hand,written exams help students to write propely and they have more time to think the anwers of the questions.Besides, students express themselves better by writing

To sump up,I think written exams are better because I get nervous when I talk in front of the people of my class, I prefer writing instead of talking