The Nichiren Shu translations are superior to the SGI and Nichiren Shoshu translations.

Nichiren always, without a single exception, wrote Namu Myoho renge kyo, SGI always, without a single exception writes Nam Myoho renge kyo. Nichiren Shoshu rarely writes Namu Myoho renge kyo. For this reason alone, the Nichiren Shu translations are superior.