Well, all three are totally different vaping experiences. I'll offer my experiences with them, but do you have any specific questions?
Clearomizer: I like these a lot. Usually vape them on my Darwin somewhere between 5.5 and 6.5 watts (typically around 4-4.3 volts). They require some tinkering, but once they've been modded to suit my vaping style I love the vapor and flavor I get off of them. The biggest modification I have to make to them is to cut the wick slots in the silicone gasket for faster wicking, if I don't cut enough I get dry hits and if I cut too much I get flooding issues. I've done it enough times I can pretty much do it with my eyes closed, though ;-)
Boge cartos: Love these. Flavor not as good as clearos, but still pretty nice. I get 3 ohm ones and use them in the mid-4's on the voltage range on my VV devices, sometimes higher or lower for certain flavor juices. Definitely a hassle-free carto. I use these in tanks, mostly
Dual coils: Not as good as the Boges, but still satisfying. Not as good flavor, but more throat hit. I get them in several resistances and run them between 10 and 12 watts on my Darwin, and also use them in tanks on multiple devices. These are best if you can put them on a device that can handle the amp draw these require for higher voltages. The 1.5 ohm ones are great around 4.5 volts, but I mostly use 2.0, 2.5 and 3.0 and run those over 5 volts. The 3 ohm ones are a much mellower hit, but still get really hot, I think I've come to prefer the 2 ohm ones.
Hope that is the sort of thing you were looking for
