I am only half way through, but just want to state, aw and efest do not make their own cells. Names like ultrsfire and trustfire tend to use recycled cells, or just. god awful cells. Though some teustfires are known to be great cells.
That said... Efest and aw do NOT make their own cells. Most likely, with some sizes they are the same.
Biggest thing is buying from a reputable dealer, and get cells that meet your needs.
There are places you can buy cell wrappers to make whatever cell you have look like what ever you want. So those aw imr 18650s could be rewraped salvaged cells. Or the panny 3400s could be too.
You need to be able to trust the seller above all when buying cells. A lot of places.are.out there to just make a fast.buck on the growing need for lithium cells. They don't care about the quality or your safety.
First off know what you need. Second, trust the seller.
I would personally buy efest over aw cells in a heartbeat if the seller is trusted. Aw cells have earned an unearned "higher quality" from candle power forums shady buiseness practices.