I don't have a ton of stuff . .but out of what I do have . .
The flavor in my Vandy Vape Kylin v2 RTA, when it has a good build, is the best . .so that's sort of my benchmark for comparison. I also have an Innokin Scion, a Melo III, a couple of Big Baby Beasts and a Nautilus 2 (I assume you'd not be interested in the Nautilus 2 but it is nice).
So - that's not really very many tanks but the Big Baby Beasts are, by far, my favorite. Great flavor, big clouds, no spit-back, tons of coil options (I've been using the .4's). They are really reliable tanks in terms of you getting the same quality vape all the time. They don't have much problem with gurgling. No leaks so far. It's louder than I'd like . .but so are all my tanks except the Nautilus 2. Compared to the Kylin with a great build in it . .there's no comparison, really. The Kylin blows it away. But it's as close or closer to it than my other tanks and, importantly, I find it more convenient to use and more consistent than the others.
So I pretty much use my RTA when I feel like messing around with it, the big baby beast when I want a similar experience but don't want to mess with the RTA .. and the Nautilus 2, actually, most of the time.