B
...Only If You're Mormon
Since BYU is run by the LDS Church, students are expected to live according to certain standards: no drinking, drugs, pre-marital sex, etc. For LDS students and others interested in avoiding those things, the nightlife is great! You can go to a party or dance and not worry about being subjected to alcohol, drugs, and other riff raff. But for those not looking to avoid that, then the nightlife would be rather drab. So, it all depends on a person's disposition and perspective.