In this article, the author attempts to analyse the legal nature of the category of rank (priority) as an instrument ensuring orderliness in the event of conflicting rights. Particular attention is paid to comparing the legal regimes for establishing the rank (priority) of property rights and rights of claim. The author concludes that rights of claim, like property rights, can give rise to a collision problem, which, however, occurs between competing creditors claiming exclusive provision from the debtor.