Computing environment resource popularity is assessed, using a computed ratio of accumulations of resource usage values and a relationship condition, thereby providing inputs as guidance for automatic system enhancement utilizations such as anomaly detection, resource management, and access or maintenance prioritization. Unlike V1 approaches that base resource popularity on at most two resource usage values, the V2 assessment approaches taught herein consider a distribution of usage values across an entire group of resources, thereby providing finer grained actionable results. Usage value accumulations may be scaled. Popularity or rareness of one or more resources of various types may be determined. A cache or other decay model may be employed to optimize assessment efficiency by reducing usage value retrieval I/O transactions. Specific utilizations of resource popularity assessments for enhancing system usability, security, functionality, and effectiveness are discussed.