To see who has given the most appreciations and received the most appreciations go to the 'Top Givers and Receivers' dashboard. This is located in the insight tab at the top of Motivosity. Once there go to the dashboards column on the left side of the page. At the bottom of this column there will be the dashboard called 'Top Givers and Receivers'.
Every user in the system can see this dashboard. It shows the top ten givers and receivers of appreciations. With their names, departments, and how many appreciations they gave or received.