My vote is for the Kayfun Lite/Kayfun Lite Plus, or a clone of that device. For me it is the single best vape in my equipment. I like dripping, the standard protank and iclear fare, various other clearos and glass devices. But in my journey my best spent money outside of some good variable voltage mod's and a Nemesis, is that Kayfun. I rotate my all day vape as the tank empties, just pop it open swap out the cotton, and roll. I vape it comfortably on my APV's with a 1.3-1.6 micro coil at about 10.5 watts and just love the flavor and vapor. Sometimes I'll build lower and pop it on the Nem, but batteries last longer on my VV/VW stuff. I've liked other things along the way, this one for that reason, that one for this, etc etc. But that Kayfun hit all the right spots for me, and so easy to fashion a micro coil and use organic cotton, matter of fact I just tonight replaced the coil I have had in it since Christmas, Didn't even need it really, just thought I could do better, and I did, much cleaner. Anyway, sorry, long winded when I get to talking about that darn thing, but thats my vote and why. Oh in case you were wondering, the APV's I run the Kayfun on....an MVP 2.0 and a Sigelei zmax v5.