IMO, No. None of them are regulated and thus suffer from "battery drain". Unless you are a VERY light vapor, at best you will get 2 hours on a charge and because of battery drain, the last hour will not be nearly as good as the first hour. You will be limited to a smaller variety of atomizers/cartomizers.
The best of the mini's, however, does appear to be the Volt. If I was going to downgrade, I would definitely look at the Volt as the best of the mini's.