Here are the e-cigs I own:
njoy Pro - Dragon (m401) truesmoker.com - Greencig G220 - Joye 510 from Innovapor
Of all these the only ones I can recommend at this time is the Joy 510 with a manual switch.
Its got great vapor, great falvor. For me its the first E-Cig that I tried, that really can replace the tobacco cig, or analog as most of you call it.
To be fair though, I havent tried dripping with the Dragon (m401), the Dragon has great throat hit, but I just got my
juice today. So Ill probably re-evaluate it.
I still have a SilverBullet (altsmoke.com) and Vapre51 (Truesmoker.com) on pre-order.
The Njoy is very smooth, not enough vapor, and zero throat hit, though at times I find myself in a zero throat hit mood. The carts suck though, and I cant tell the difference between mint and apple.