It's a flaw of the comic book medium.
These stories stretch forever and jump from creative team to creative team, and each issue that's released on a monthly basis for years is supposed to be exciting enough to warrant a purchase. So each team is going to have their own take and there are bound to be conflicts with canon, poorly thought out and rushed plot points, ludicrous feats for the sake of being "super", etc.
In a "Death Battle" scenario, you pick and choose all of the hero's greatest accomplishments and treat them as peak potential, when really we should probably treat those outstanding moments as outliers and find more of a mean. Half the stuff they showed about Hal Jordan, I turned to my brother and said, "Yeah but" and then brought up a story where he did the exact opposite and sucked.
The best superhero comics are the short term spinoffs where the writer gets full control over the story and doesn't have to worry about ongoing canon.
Or Daredevil in general because he's always somehow been immune to over-serialization and only gets good writers.