The success of traditional learning is based on the individual use of learning tools, depending on the learners' personality. But modern eLearning is disregarding this major fact. By using learning analytics, this paper examines the correlation between personality traits of the user and preferred learning tools in an eLearning scenario. The investigation is based on a field study with 992 participants. The participants worked on a collaborative and online-based scenario in which they were assigned with a task in groups of five students. The results of this research show that personality traits, particularly in case of eLearning, have a significant influence on the individual preference of learning tools. This finding can be used to offer learners individual learning environments.