Salam!!
That is true to the best of my knowledge.... Darood Ibrahmi is best one... but some one asked me about Darood Sufi which i couldn't find online... that's why i need your helppp... جزاک اللہ من خیر
by durood sufi do you mean duroods that are often recited by sufis? there are many, e.g. salawat fatih, shifa, tunajjina, nariyah, kamaliyah, etc. i haven't heard of "durood sufi" in particular.