Neither, i prefer the newer 808 cartomizers, i don't like how hot the LR's get, and they have a short lifespan, and then the regular attys just don't give off the warm vapor much, i guess i'm just spoilt with the ultra 808 cartos and not having to mess with dripping /
juice bottles every few hits
Don't mind me i'm just not fond of atty's much, i do use them on occasion but the constant babying gets on my nerves a bit.
If i had to answer your question then i'd say i prefer LR on a sealed mod battery like an eGo as it's not really 3.7v when it's loaded, but an LR on a freshly charged 18650 on my GGTS is wayyy too much and everything tasted burnt.