Well, have 3 box mods that I use, 2 ChinaBox30's, and a SuperMax. Max does 50 in watt mode and up to 82 watts in volt mode. Enjoy all three. Have the china30's power locked at 30 and in stealth mode, Max I'll switch between volts and watt mode to whatever will put out the most watts.
Max, I veiw basically as a regulated mechanical, with a max output of 5.5 volts or 15 amps, whichever comes first, so target ohms is still a primary concern if one wants to get maximum output. Still getting to know Max, but liking him so far.
For dripping, I generally use mechs, if you don't drip below 0.5 ohms, the a dna device would serve quite well. Nice thing about the dna's is that most any build it will fire will get ya 30 watts if so desired, and is very user friendly. All depends on where you vape at. Me, heck, I'm all over the board, I just try to get the maximum performance and quality vape out of all my gear and rba's. This ususally puts my vape at a low of 30 to a high of 92 watts or so.