Big White is a great resort with great skiing/snowboarding.
However, if he would be willing to stay in Fairmont Hot Springs, or Radium Hot Springs - then he would be within a short drive of Panorama Resort (run by intrawest, the same people that run Whistler), Kicking Horse Resort in Golden, and Kimberly Resort. And just a bit farther is Lake Louise and Ferni. I booked a place for a friend of mine last year in Radium, and he loved being able to go to a different world-class resort each day!
There's also a hostel at Big White. I've stayed there before - it's nothing special but they do have private rooms with kitchenettes and small TVs (or you can rent a dorm bed for CHEAP and use the shared kitchen). The rooms are very basic, but quite cheap compared to a condo rental. They also have a hot tub.
If you book a place through the central reservation desk, they often have specials in January and late March. Often free lift tickets with condo rental - considering how expensive the lift tickets are, this is a very good deal. A private rental would never be able to offer free lift tickets.