The only experience I have with any of these is the Totally Wicked Tornado. Now, I had the tank system, which at the time was great. It's a nice little e-cig that, if you are just starting out, should work. It got me completely off analogs for the entire period of lent, which is why I stopped in the first place. As you may notice, at least I did, after a while you're going to want something better. But for a first go at it, the Tornado Tank did just fine for me. And like I said, I don;t have any experience with the others. Hope this helps a little, if not, I'm sorry for rambling lol.