Most users probably would like to use UTF8 in order to use non-English characters in the metadata (exiftool options: -charset UTF8 -charset IPTC=UTF8). According to me it works the best in combination with "-use mwg" option, from the exiftool man:
This module adds read/write support for tags as recommended by the Metadata Working Group.
Most users probably would like to use UTF8 in order to use non-English characters in the metadata (exiftool options: -charset UTF8 -charset IPTC=UTF8). According to me it works the best in combination with "-use mwg" option, from the exiftool man: