Originally Posted by
sunofdarkchild
There's a difference between 'very powerful' and 'limitless' which is being ignored by most of these comparisons, but at least you didn't lump in villains. Thor for instance does have limitations in the vast majority of his appearances. He has enemies who are far more powerful than he is and has in fact burned himself out while fighting. If Thor was actually limitless in power, he would never have any trouble with Surtur or Set or the Serpent, and he'd be far more boring. The Hulk is a character who is actually functionally limitless in strength since he always has the out of just getting stronger by getting angrier, but his strength comes with very obvious downsides and it's those downsides that always made him an interesting character, not his strength, which is the most generic and boring superpower which a million other characters have.
When we criticize omega-level mutants, Jean's latest 'fight' with Nightmare is a prime example. There's no tension or stakes because she wins instantly just by virtue of being Jean Grey, the omega-level telepath. It was a similar story in Dark Web, where she defeats her supposed equal not by digging deep or outsmarting her, but again by virtue of being 'Jean who has no equal.' They don't bother trying to come up with creative ways to make the villains threatening such as having Nightmare use his supposed prep time to do anything to prepare for a rematch or have any of Maddie's magical powers and demon army make the slightest bit of difference in their fight. There is no point in ever having a psychic villain ever face a team with Jean on it since she can just insta-win against every psychic being in the multiverse with her limitless power. She doesn't have to prove she's worthy like Thor. She doesn't have to suffer the consequences of her power like Hulk or like she did as the Phoenix when her power was actually stated to have limits despite being at a cosmic level. She just wins. And that's just boring and uninteresting.