Best IMHO: Volts, G6, Bloogs (I had really bad luck with a batch of Bloogs, but hasn't happened since)... I don't think there's a very significant difference between these. Ikenvapes megas are good but jeez, with a drip tip and an xlong batt, which is how I swing, you're Audrey Hepburn - the foot-long ecig... : P
Really don't bother with vertical coil (V4L CoolCarts don't burn very easily but they really fall short on flavor and plume).
(Vapornine Turbos were good - dunno if they're even still around.)
I wouldn't mess with dual coils until they get 'em right for 808s. Lotta hassle and inconsistency. But then again, I think that a dremel is one of those little tops you get for Hanukkah.
Patience, right?
(And do try Kick Bass Vaper. Amazingly good juice, and I've tried a ton.)
Bumpity bump.
Have fun!