I have both (well, HAD both).
For function, the Spinner wins. No contest.
For reliability, the Joyetech probably is the better.
I don't like Joyetech much ( really??

) but there are less reports of failure. Even Vision admitted to building in a "new and improved PCB" into the Spinner V.2.
is it out yet? I had two 2012 models and one 2013.