All of these reports talk about relationships, but there are significant differences between them.  Students of astrology will appreciate the astrological terminology used in the Rob Hand report.  Applicable for virtually any kind of relationship, Rob Hand analyzes each factor in the composite chart, including planets, house position, aspects, etc.

The Liz Greene report, on the other hand, uses virtually no astrological terms. This report is exclusively about love relationships, and focuses primarily on interpersonal relations between the two partners.

The Mona Riegger report could be used for non-intimate relationships and it does put more emphasis on the interactions of a couple with other people and situations. It is based on a combined relationship chart, but does not use astrological terms or refer to the underlying chart.