How can I make a final decision when two universities both seem good?

Assuming you have been admitted to both and can attend either, compare them against your own priorities rather than choosing based only on reputation. Separate factors such as what you want to study, teaching style, commuting and living costs, academic support, and extracurricular activities into “must-haves” and “nice-to-haves,” assign them weights in a comparison table, and verify them through official information, information sessions, or visits. In the end, consider not only the scores but also where you can realistically picture continuing through graduation, especially on the points about which you remain most uncertain.