The Different Methods Used in Da'wah is A Blessing
Question :
Some callers increase the awareness of their audience by educating them; others may just remind them of good or stir up their feelings with emotional speech. Which of the two techniques is more effective?
Answer:
I see that this is a favor that Allah Almighty has given to the servants. He has made them different in the means and methods they use to call to Him. Allah Almighty has endowed the preacher with graceful, elegant, and moving speech. Therefore, he is better off giving sermons. Another may have been endowed with knowledge, but not with speaking power, he should educate the people.
Allah's favors are distributed among His servants, and He has raised the rank of some over others. This is why I feel that a person should use that method which he deems to be useful and most suitable to him, without embarking upon something that he is incapable of performing, but instead make himself firm in seeking the aid from Allah Almighty such that He grant him sincerity.
Source:
Ibn 'Uthaimin
Fatawa Islamiyah, Vol. 8 Page 65