...that Otto Carter though...
good stuff posted here. the nemesis clones from HCigar are quite well made, as are the Kings and Chi's. the Kamry line is not bad for the price. you know about battery and atty safety for your builds, so the question mainly comes down to aesthetics...a full size 18650 mod? a small 18350 mod? the majority of all the mods that have been listed are adjustable to fit the standard battery sizes, so it goes back to what you want to build for it [safety first!], then what looks good to you.
although one thing that has caught my attention recently are some 14500 dripper hybrid clones. can't build too low for that battery, but with some inventive coiling and cotton wicking one can have good vapor and flavor, plus the full device is so compact! still learning how to post links and pics, but google can show you until then.
-m.