It really depends on what else you want to do over the winter.
On Vancouver Island you can golf year round, Kayak - just dress for the weather, fish, hike, visit wineries, just about everything you can do in the summer. The days are just cooler, damper and shorter.
Snow is a rare thing and because many locals cannot drive well in it, it is best to avoid the roads. My son's university in Nanaimo closes if there is snow, because the campus is built on a hillside and there are stairs running up and down. They cannot keep the clear of snow and it is a safety concern.
