Aruch Hashulchan and Mishna Berura

 https://outorah.org/p/119770/

Finally, although the Mishna Berura was written by a great sage, he was not a practicing rabbi. The author of the Aruch Hashulchan, however, was both a great sage and a practicing rabbi. As such, Rav Epstein was much more involved with the community and had first-hand familiarity with the problems and challenges that people faced. Because of this, he had much more skill and experience in applying halacha to real-life situations and individual needs. Indeed, Rav Moshe Feinstein is reported to have said that the Aruch Hashulchan is to take precedence over the Mishna Berura for this reason alone.[4] There is a growing list of other contemporary halachic authorities who concur, as well.