If you're looking for a rock-soild battery that isn't "complicated", I'd recommend the Innokin MVP 2.0 (its a box-style, VV/VW), and I can't praise mine enough. If you want something smaller, but still with decent battery life, a Spinner, Spinner2, Innokin VV V3, etc will provide you all day (or two) vaping pleasure without having to recharge.
I'm no cloud-chaser... I stick with tanks, and love my Kanger ProTank 2's, AeroTanks, and ProTank3-minis (smaller for my eGo batteries). Use a 1.5 or 1.8 Ohm coil and you get a really good vape. Many here also praise the Aspire Nautilus for better flavor and vapor, but I've tried them and think the AeroTank is just as good (at a cheaper price).
More vapor is achieved by using a higher VG content juice. Most commercial juices are 80/20 or 70/30 (VG is the last number), so vapor is okay, but flavor and throat-hit are more pronounced. 50/50 juices are truly a good "balance", and I get just as much vapor from those as I do my 30/70 juices (and more flavor).
Welcome to Vt, take a.look at.our store there's some great prices.
I actually build my own coils so not up on the latest & greatest in tanks but many are they'll be along promptly.