Cartos: My daily vapes are Boge XL 3.0 ohm cartos in my DCTs. The pre-holed Boges have a nice, big hole for my VG-heavy juices, and the flavor has been just great. Earlier I would use the flanged DC cartos for DCTs, which are just fine, but my experience has been that the DC cartos mute the flavor ever so slightly compared to the Boges, so Boge it is for me.
Clearos: My experiences with clearomizers have all been bad, but I kinda like the concept, so I have several of them lined up to try out, including iClear 30 and Kanger MT3.
Atomizers: I've had a lotta great experiences with Joyetech 306 LR atomizers, some of them lasting me for months, but they've also been fairly hit and miss. It's also annoying having to wear in a new one after having had a fantastic working one for a while. Just recently took my first step into the world of RBAs in order to save some money in that department, and I'm starting to get the hang of it. Eager to try out a genesis style soon! Also curious to try out dual coil atomizers and the AVA atomizer. "Different is interesting".