The idea that Superman is boring because he's strong is making the mistake that superhero stories are about the fights only. The best Superman stories are about his humanity and relationships. He is a pretty complex charachter on that level.

i mean the good superman stories are like "for the man who has everything" but there are a fuckload of superman writers who are not alan moore and just give every 2-bit thug in an alley a kryptonite gun

other characters can have stories about the fight and have stakes or precarity but superman isn't credible in that mode. they need to stop adapting the fucken doomsday story.