The truly global character, the organizational methodology, the highest integrity judging process, the 100% independent character of the award, the unquestionable composition of top judges make GBWA unique in the world. There is no better comparison than to the Nobel Awards, which have a widely accepted, credible mechanism. However, the process for selecting the GBWA winners is even stricter than that of the Nobel Prize:
https://www.nobelprize.org/nomination/peace/
Category:
II. Classic Award categories