I've currently got a few Ego batteries, and using dual coil cartomiser tanks on them. They do the job admirably, but considering getting a Lavatube, as a mate has one, and it's seems to give even more oomph. I've tried a few flavours, inc cherry, almond, tobacco and menthol. TBH I like menthol the best, cherry is disgusting, the almond is sickly, and well, the tobacco is bearable if I got nothing else.
I've not cheated yet with real fags, but almost tempted a couple of times when had a bit too much booze, but a few long drags on the ego, quickly makes that feeling subside.
If it comes to it I will even have some more of the cherry if I have to, because smoking does not appeal to me any more so anything will do, unlikely though as I currently have 120ml of juice in 36mg, and will get a couple of 30mls every couple of weeks to keep my supplies in order.