I think Janna is an unfun and currently overpowered champion.

I have not lost to a Janna. These are just my thoughts that arose at the moment after reflecting on the various champions in the game. Janna came to mind particularly. She's not a conventional champion to complain about, in that she doesn't do much damage. Her abilities are much more subtle.

I have looked past that and see her as a support that simply provides too much without having the player do much. Her passive, W, and E are abilities that require minimal effort from the player. Q and R are interesting abilities. We've seen the Q cancel Lee dash, or a flash R blow away the enemy support blocking their ADC from Jhin ult. However, that is only 2 out of 5 abiltiies. The other abilities are simply stats for you or your team.

Additionally, Janna has had one of the highest win rates along with a high pickrate for a very long time. This is because the bonuses she grants her team consistently outperforms that of most other supports. Obviously, "win rates aren't reflective of champion strength", but it's a pretty good indication of it. From my experience, Janna actually has a lot of impact in games, but in a not so obvious way. For example, her shields, MS bonuses, and healing aren't as in your face as a Sion ultimate, but I notice how the things she does add up.

In short, Janna demands hardly any skill expression while being a very strong pick. For those reasons I view Janna as unfun and overpowered. If you disagree, please provide counterarguments that Janna is interactive, fun, or a weak pick.