Boreas. The flavor is insane, and it can be built from about 15 watts out to 250, for more cloud than my lungs will handle. It equals the flavor of the Aromamizer Supreme, but is a simpler design, easier to use, and no rassinfrackin' tiny pins to fall out and lose. It's got a build deck the size of an ocean liner, airflow so free I actually close it down some, and comes with two (removable) decks so you can vape one while building the other, and swap them without emptying the tank.
It's a juice ho above 50 watts or so, but they all are. Holds a full 8ml if you bottom fill, and does not leak when properly wicked. Some people dislike the fact there's no knurling on the top cap or AFC/JFC ring, but the former was fixed in the second production run and the latter doesn't bother me. I only know one person who complains of having trouble turning the AFC. It's also a 25mm tank, which some do not care for for esthetic reasons, or because they don't know how to build a large diameter tank for flavor. Aside from that, I can't think of a reason to not like it. I think it's the best tank yet built.