I also think I like the build on the kayfun, taifun, Lemo, etc the best. I have a Rosev2 clone also, but the build is kind of a pain.
I think I want one more tank, but I'm not sure which one. Eproximizer? Erl if clones come out? Another Lemo or Taifun? I don't think I want a Fogger.
No comment on the Erlkonigin, I've yet to try one, although it seems the clones will be here soon enough.
The Expromizer is a nice one, but even at it's most open setting, the draw is only marginally better then a Kayfun. If you're expecting a more open draw like the Lemo, you will be disappointed. Great flavor from it though, and it is filled like a Taifun GT, which means you can build and rewick it without emptying the tank. I also purchased the tank and chimney extension. Although it's HUGE, it holds about 9ml of eliquid in long mode. I can vape on it in for a couple days easy.
The v1.2 was just released which now has better looking top cap, otherwise the same as the v1.1.
I saw a post recently here that someone is selling a v1.1 clone on Ebay, and it appears to be spot on right down to the packaging. So much so, that I believe it isn't a clone, in the sense that it was probably manufactured by the same company building the Expromizer for Exvape. While the Expromizer is designed and sold by a German company, it is manufactured in China.
Perhaps the manufacturer had left over product when Exvape wanted the v1.2 produced. Who knows......For $35, it looked pretty nice.