Yea, sadly that the case most of the time. You just have to choose what best suits you.
I would say though, that while typical clear-o-mizer may not have the best vapor production, or hold as much juice vs a tank, many times they tend to produce a bit better flavor.
Granted, this is not always the case, just a 'in general" conclusion.
There are always plus and minuses to any set up. So whats "best" really is a personal thing.
But that gap between the two is closing with newer better tanks/rtas so youre getting the best of both.
Fortunately, the prices are coming down a great deal to on some the higher end devices.
Personally, I don't to 80VG blends for a daily vape. It tends to be smoother, thicker clouds etc, but also a thicker juice.
but, flavors are so different with different blends/nic strengths it varies.
I find 50/50 is the best all around. Its what I mix most of my juices at and occasionally 40vg/60opg.