right now my favorite clone is the trident, k100, china gg(mkb-kts) and nemesis
trident I purposely went with the clone, i prefered the hole sizes on it better then original rda.
k100 simply because the empire(what its cloned after) isn't 510 threaded and I hate gaps between the device and the topper. otherwise I would own a empire, always loved them just not quite for me.
nemesis only went with the clone because the reviews were great and wasnt sure how i would like carrying around a brass color mod.
china gg just because i was being cheap but i will probably buy a just gg with some of my tax return.
mmmmm tax money