Prior to firearmagedon I tried to visit all of the LGS regularly to check out the gun deals etc. Since then only x-ring since I live sort of near by. My experiences have been pretty good with all of them with the exception of Honolulu Firearms/Magnum.
Here is my list and opinions.
OGC- Great staff, prices are good and selection is the best on the island. Parking sucks though.
SE- Prices are good, selection is fair. Staff is young and seem like they were getting too old for Airsoft and moved up to the real stuff. I just find it a little funny listening to people give advise about guns & gear when it's very obvious that they themselves have had very little real world experience. These guys must be badass at Call of Duty though. I learned to just smile and nod.
Kaneohe Gunshop- Prices are good, selection is limited but he is one of the best places to get individual AR parts if you are building. Feels like the soup nazi from Seinfeld though. Just keep your head down and ask direct questions or "No soup for you!"
WGS- Cool guys, prices are decent and have a lot of parts if your in to AR building, I would say a little better than KGS because they often carry barrels.
Gun source- The owner is cool and the selection pre-craziness was good. Prices though we're a little higher than the rest.
Young guns- Staff is nice but the prices were a little up there. Looks like they have a lot of stuff that's been sitting for a while.
Honolulu Firearms- Staff are young and not very knowledgable. Who are they kidding, it's Magnum under "new" management. Same over priced guns, same over priced accessories.
X-ring- Pretty cool, prices are decent but the selection of parts and accessories seem a little on the cheaper side ie no La Rue, LMT, Noveske, Aimpoint, Surefire etc. I guess I'm just spoiled by OGC standards. The fact that they offer "gunsmithing" gives them an edge though.
These are all just my opinions and I hope not to offend.