Continuous evaluation of instructors' effectiveness and courses' relevance constitute an important part of the educational Process. In this paper, the Analytic Hierarchy Process (AHP) is used for the Ranking of the following University Courses: Introduction to Computing, Business Statistics and Financial Mathematics. The data for using the AHP model are 482 Greek university students' answers to a questionnaire for the evaluation of the above three courses, with respect to the following three criteria: Teaching Effect of Professor, Effect of a good course book and Easiness for obtaining a pass grade at exams". After applying AHP, we found the weights corresponding to the importance of the courses. The final ranking was the following in descending order: First course: Introduction to Computing, Second course: Business Statistics, and Third course: Financial Mathematics. The Consistency Rations were calculated for all 7 pairwise comparison matrices (PCM) and were all less than 0.1, which is an important requirement for the consistency of the pairwise comparisons. An important finding is that for students, the Communication ability and friendly conduct of a Professor carries more weight that his research activity and that the homework given to students during the course carries more weight than knowledge accumulated from similar previous courses. Finally, students rate higher a book containing many examples presented with clarity than the effort which they make in obtaining the course book.