I am looking to purchase a set of Mishna Berura and wanted to know what the difference is between these two versions: Mishna Berura Oz v'Hadar and Mishna Berura Dirshu. Which would you recommend and why specifically?
The Mishna Berura Oz WeHadar that it is split into many volumes has these features:
The Mishna Berura Dirshu will bring explanation and comments on the Daf of Mishna Berura but it is not at all an in depth explanation like the Mishna Berura Oz WeHadar. So if you have the money and are interested in a real limud in the Mishna Berura take the Oz Wehadar. If you just one want to learn Mishna Berura regularly (which isn't Has Weshalom bad) with a few nice notes from the later Aharonim and the bringing of the places where the Mishna Berura writes "Ayen Sham" take the Dirshu.