I only visit 2 LFS's on a regular basis.
2. Jim's Exotic Fish (El Segundo) - Nice store. Nice people. They sell both fresh and saltwater stuff. I go here all the time because its close to work and in the strip where i eat lunch on a regular basis. Not too many fish but their prices are pretty good. They do get some nice frags every once in a while and they are priced lower than most shops in the area. The frags that they carry are zoas, sps, acans, and some other smaller stuff. The neat thing i like about them is that sometimes they will have a very large colony of nice zoas for a decent price, however, i only want a small frag of it. There have been a few times where i'll ask them if they can break me off a piece for a lower price. If its possible to do without damaging the rest of the colony then they will do it. Probably because the people that run the shop ARE the owners. So they can make decisions on the spot and not risk losing business.
I was in there last week and they mentioned that they have plans to completely renovate their reef section by the end of this year. Looking forward to that for sure.