It is complicated. More power, vapor and juice consumption should have more flavor, but if that's uncomfortable in any way you probably won't enjoy it. Also, some extremely low power, restricted airflow devices show great flavor can be had that way too, maybe even more so. I like a low enough power I can do a mix of MTL and light direct lung inhaling without overheating during any short pauses in the draw that result.
There's also a difference between direct airflow controlled devices and those, usually tanks, with a separate airflow restrictor. With direct, a smaller airflow hole can direct air onto a small coil. With indirect, you can even end up with a large duct to the coil too restricted in air supply to work properly.
There's also a difference between direct airflow controlled devices and those, usually tanks, with a separate airflow restrictor. With direct, a smaller airflow hole can direct air onto a small coil. With indirect, you can even end up with a large duct to the coil too restricted in air supply to work properly.