Of all of the chargers you have listed at some point I have owned or used most of them and the Dynamite passport Ultra is the most user friendly one of the bunch. It is like a Duratrax Ice charger only with a much simpler setup display. It is the charger I suggest to all of the new comers at our track because of its simplicity, and its in that $120-$135 range depending on where you buy so its not that expensive. just my 2 cents...