[mrhasan]

My experience (other's may differ):

Concept: This is where 90% of my money allocated for the hobby goes. This is my go to place for hardware and corals. Not so much for fishes.
Pieces: From my experience, almost every tang in that store is infected with ich. I only go there for inverts; they always seem to have the inverts that I look for.
Big-al: This is where I got my 1st tank but stopped going there when I came to know about other stores.
Ocean creation: My go to place for fish. Never had any issue on any of the fishes that I bough from here. Given that I am not big on quarantine, get healthy specimen is really good.
Wai's: probably my last choice for LFS if I cannot find something locally or online. Great selection of corals but hell expensive and unless you are there for buying something, the guy is not very pleasant.
Reef wonderful: Hell expensive. Great guy but in the end, I personally wouldn't pay a 50% premium just for customer service.
Gold's aquarium: Extremely good price and they QT their fishes so, like ocean creation, you will get healthy specimen. Their prices are so cheap that sometimes, it is just shocking and will make you wonder how they manage to sell things so cheap. Used to be far away from my old place but very close to my new one so I will visit them more often now that I am back in the hobby.