I think the Stillare kicks ...! I've compared it to the Quasar and the Zenith V2 and I ranks up there with both of them. I think flavor and vapor production is very very close in all three of them. And I don't really mind that the Stillare is only for duel coil. I'm not that big on single coil anyways. The only reason I pick the Stillare over the other 2 is because the post holes are way bigger.