A. The Kabbalists felt that the Sefardic version is a bit more spiritual, more in-line andcompatible with Kabbalistic interpretation. Chassidim like to follow the Kabbalists when possible. But, the “Nusach Sefard” that Chassidim pray is not the same as the original Sephardic prayer rites. It’s sort of a compromise version. Please note: the differences between Sefardic and Ashkenasic rite are very small, and most of the service is the same. Also note: These Kabbalists (especially the Chabad Nusach Arizal) are “in sync” with the Halachic regulations as well.