The use of Ergonomic evaluation methods is one of the practical approaches for the evaluation of risk during ergonomic interventions and Occupational Health and Safety applications. The aim of this research is to compare different ergonomic evaluation methods against factors they use during application. With this approach, the most commonly used factors in different evaluation methods will be identified. The existence of any clusters or intersections of factors is studied. Applications of these evaluation methods on real cases and significant effects of factors in different occupations will also help ergonomists select the beneficial method for their sector.