100% agree. It changes from platform to platform, but the relatable persona/niche while on demand storyline is a perfect summation of it.
That said, it's just such a difficult balance... I mean, of course it is, or else everyone would pull it off. You can certainly do it smarter, as dawg said, the ''clean and simple'' art reigns here. Romance and slice of life stuff too. It's hard, though. Don't know you guys, but at least to me it's hard to even feel relatable! It's a whole thing!
Totally good rule of thumb. Personally what I love the most about super hero comics is, besides the zaniness and how they merge so well with any genre possible, is how they essentially tell human stories through symbols, myth and general crazyness.
I find that the most wacky writers that are famous can do this really well, like how Batman Inc. by Grant Morrison is the story of how Batman built a franchise, an army around the world to fight the ultimate criminal organization run by the mother of his child, but actually is the story of an ugly divorce, a man who can't bring to talk to her ex-wife like a grown up human being and a son getting caught right in the middle. A relatable, human story, filtered through the lens of international crime fighters and terrorist super cults. ''It's just... there are people whose hurt feelings can trigger wars. People whose broken hearts become grand opera, on an international stage.'' When Batman breaks up, the world burns. Isn't that how it feels when you have a broken heart?