I went with the Wraith for several reasons, mainly I have found in the past that Council of Vapor makes much higher quality products than Kanger.
The only thing I can see going for the kanger is the dual batteries, which is not important to me. If you can't or won't rebuild coils, I guess the Kanger, by default, would be the way to go.
Most vapers I know who seriously squonk that bought the Kanger ended up ditching the stock atomizer.
I already own several squonkers and BF attys, from expensive to fairly cheap in quality, and didn't feel I need a low quality (Kanger) squonker.
I've only had the wraith for a few days and it is a very nice setup for the price.
I have not used the Wraith atomizer because I don't like wide drip tips and have many other bf attys I love, but a lot of those just starting out probably won't have a BF on hand. It looks like it would be a pretty decent bf atomizer, definitely way better than the Kanger.
That is my assessment for what it is worth