Highlander has a fantastic selection at a very competitive price point. While I usually take a hard right and make a bee-line for the beer cooler, I've always been able to find the wines I've been looking for, scotches friends have referred to me, all the way through the liquor spectrum to a bottle of absinthe here or there.
They've got an outstandingly cold walk-in cooler with a fantastic all round selection of beers. You'll be able to find everything from Brewhouse and Lucky Lager, all the way through the mainstream Molson spectrum and even a great selection of world beers and plenty of Canadian Craft. Whenever a local brew puts out a seasonal or a limited run brew, highlander is always one of the first stores I can find it.
They've got a points program that I love. I just give them my phone number whenever I make a purchase and every now and then I get $20 off my bill. Magic!
There are several Highlander stores in Calgary, which is great because they're awesome... really the only problem I have with this is with a name like Highlander, there can be only one! Badum ch!!!