I know LightHound is safe. I assume SuperT is as well. They only sell batteries for their own mods and they are well respected. I bought from EmpireMods and they have an authorized dealer symbol on their front page.
As I said, I know nothing about most of the companies on the list -- it's all the results for "AW IMR 18350" until I got to a page that was mostly Alibaba. I just want to save people some googling time.
I wasn't questioning whether of not those specific shops are legitimate, more making a general statement about buying AW's. Although, it's not enough just to trust the shop. Fakes can make it into the supply chain before the retail level. If you trust a shop and they say they get their batteries directly from AW then you should be good.
Really, the best way to get AW's is directly from AW himself. He sells them direct over at the Candle Power Forum: AW's LiIon Batteries Sales Thread *Part 12* I thought I saw a thread from AW announcing that he was selling batteries here on ECF but I can't seem to find it.