I live in Burnaby so I generally go to King Ed's, J&L (sw) & April's (goldfish, tropicals & some shrimp). Have had excellent dealings with all these LFS. King Ed's is 5 minutes away & I like dealing with Ron, Kathie & especially Robert in the sw fish room. J&L has the biggest selection of sw livestock & stuff in Metro Vancouver. April's store is just a few minutes away from my church and she's always a pleasure to deal with & quick to answer questions when I text or call her.
For my brackish water fish, I like the fact that Fish Addicts in Langley has a permanent brackish tank setup. This is really good for me since they keep archers, monos, scats & puffers in stock and already eating pellets/flakes/frozen foods. These are just not very good sellers and most other LFS cannot justify devoting invaluable tank space to keeping a few brackish fish that may sit around for months before someone like me walks through their doors.
However, I also buy/sell/trade with a lot of members on this site & canreef, as well as the occasional Craigslist deal.