I'm a night skier at Cypress and occasional day user (once or twice a year) and have tried the two other mountains previously but the fun is at Cypress. Decent long runs with quite a few black diamonds open at night. There are also some semi lit double black but you need to know the terrain.
Both night quads are high speed which gets you up in only few minutes and the waits are usually minimal. On the runs, if you stay away from the blues and greens, you have the resort for virtually yourself.
One of the cons is the new lodge, I liked the old lodge and the pub, it was kind of old timer ski hills with artifacts and ambiance, the new one is big, cold and with no character.
One area I visited during the day is Raven Ridge which has awesome runs Black Diamonds and up but the quad (the old Lion Express) is slow. I wish they would open some of the runs at night (it could connect to the other chair)