I did order some sample bottles from them and wasn't thrilled by the Flue Cured. Some of this was due to a less-than-thrilling experience with the Flue Cured bottle itself. The tube that feeds to the dropper tip was blocked. I didn't realize that. I thought it was just another one of those bottles with a slightly smaller than usual diameter tube inside. I have several like that. I squeezed just a bit harder -- not super-hard...and suddenly the entire dropper tip came flying off the bottle. Immediately half the contents of the bottle ended up on the counter. I've seen some defective bottles come out of China, but that one won the prize. Best Ecig's response about it was noncommital at best. As in: we'll look into it. (Yeah, thanks a bunch, folks. You do that.) I thought twice about ordering 500ml of Flue Cured from them after that and it's probably just as well...No, bestecig and dekang are not the same. Bestecig manufactures their own, so it's unique. Can't tell you who is selling their juice. It's been a while since I ordered from them (my first e-juice purchase actually) and I was a noob at the time. I remember their flue cured as being okay, but nothing to get super excited about.
I found the flavor of Liquidxpress' and Rocky Mountain Vapor's Flue Cured to be really good, with the LX flavor being slightly stronger. But they're close.
I recall some people saying that the flavor called "Virginia" is close to Flue Cured, but the one small bottle of "Virginia" I got (from Eastmall, I think) wasn't much like the LX or RMV versions of Flue Cured.
tobacco flavorings are interesting. You can get all kinds of fruit flavors (or coffee, chocolate, etc.) from Lorann's. But I wonder how these vendors make up their tobacco flavorings. It can't just be the tobacco absolute. I would think that must be a kind of generic flavor. They must guard their formulae carefully.