My area will be a lil better, if the questions were asked here, with it being a college town, however these are my opinions.
The Toys r Us one imo is a given, from what I have seen the employees work all different areas, and if one knows about games its just the luck of the pick.
Best Buy - almost the same as TRU, but they say they specialize people in certain areas right?
Gamestop/Ebgames, at least both places showed that the employees had their knowledge although both is hit and miss for friendly-ness.
One time I brought in a copy of DOA ultimate that I bought at the ebgames online site, to exchange for another copy. The manager lady, kept trying to give me a PP copy. I told her mine wasn't preplayed, she kept saying yes it was. I then leaned over the counter pointed at the reciept which showed that the other game I bought "Loaded" had preplayed beside it, and this one didn't. She then kept quiet finished quickly and started breathing loudly.
I almost pulled a DDF and kicked the magazine rack over...but decided I would wait till she got off work so I could drop kick her in the throat. :lol: