Me i started with the kangertech evod vape pen. hated it but stuck with it till i could get a new one then i bought a mvp 20w and i hate that since it doesn't give me what i want is a ton of flavor and some clouds. the mvp 20w clouds is like a cigarette , i am trying to quit but it's not helping but i am sticking with vaping even though i am still having cigs here and there... i might buy a couple mechs for back ups as well.
Choopie, what kind of topper are you running on your MVP? I use Kanger Protank 2s (rebuild my own heads), use 30p/70v juice (DIY that) and I get PLENTY of flavor and cloud running at about 9-11W. I have a kayfun clone with a 1 ohm coil that I'm running just under 15W, and I have a haze in my living room right now....
It's not all about the battery - it's very dependent on the type of topper you're using, and the juice as well. Airflow makes a difference, too.... I have the "bigger" mods, but even with a 0.5ohm coil on an RDA or in one of my Subtanks, I personally don't go much above 23W with anything.