Depends on where you're located in BC as well.
For example, where I live on Vancovuer Island, we only have 4 different brands of milk. I try to go with Avalon when I can but it can be pricey (they're the only place to get standard milk but the cheapest I can get it is $3 a litre).
If you live in the more interior region of BC, you can get more of the local farmers. Supposedly there is a really good dairy farm in Kamloops that sells Jersey milk.