I love the Halo Trident. Just got it on Friday and so far I love it. I don't know about the others. Before the Halo, I was using Play Vapor the kind that you recharge the battery but throw away the prefilled tips. Also tried, Green Smoke and South Beach. I will still use them when I'm out somewhere, since they look more like cigarettes, but I really love the Halo and will use it most of the time.