Answered by Sayyidi Habib Umar bin Hafiz (may Allah protect him and benefit us by him)
What are the best prayers upon the Prophet ﷺ to recite?
Every prayer contains goodness and blessings. Any prayer which is recited with love, yearning and veneration is of great benefit regardless of the form.
Priority should be given to the salawat that have been narrated in the Sunnah (such as al-Salat al-Ibrahimiyyah), then the salawat that have been narrated by the early generations or salawat that your Shaykh recommends.