I agree with Rick above.... Whenever which is 'best' is asked, one has to ask
'best ....according to what standard?' If best, means you can easily read the voltage on the dial, then the
joyetech Twist isn't the choice. If 'best' means longevity, safety, and reliability, then
joyetech eGo-c Twist is the choice. I've had all kinds and the Joyetech eGo-c Twist is the has served me well in those categories. I've had Twists over a year old and a Vision that didn't make it to 6 months. But as always ymmv.