Of these, I've used the KFL+V2, K4, SubTank, & Atlantis. I've also used a Triton and a Crown (and a bunch of RDAs).
The airflow on the Kabuki can be adjusted to be airier than the KFL+V2. I find the flavor, with a bit airier a draw, to surpass the KFL+. I also have a PlasmAir, and find the Kabuki and PlasmAir to offer equivalent flavor. The Kabuki is easier, though
For me, there is no comparison between the Kabuki and SubTank. The Kabuki's construction is leaps and bounds better, as is flavor. IMO (and only MO), the SubTank higher ohm coils don't function well. Ditto for the other sub ohm tanks. It, the Atlantis, Triton and Crown were designed for sub ohm vaping. I like all of these tanks for cloud production (especially the Crown, at .2 ohms), but not at all for tootle puffing. And of course, the difference in juice consumption is major.
The only tanks that provide the same flavor to my taste buds are small, top air flow RDAs, with domed top caps. There seems to be something about the size of the tank, air above coils, and the ability of vapor to swirl around in a dome that adds substantially to flavor. But, these are RBAs, modded for squonking -- an entirely different application. Not apples to apples, at all
For ease of use, form factor, quality, and especially flavor, the Kabuki wins. - for me. But that's the beauty of vaping: there's something for everyone!
HTH!
