Films that are successful by the metrics you mention are more important and influential to less established properties. Batman has been around for so long and been so successful in ebbs and flows over the decades that successes and failures don't affect him as much. There is a base and and brand loyalty there. The same is true for Superman, I believe. Characters like Iron Man, Captain America, and Wonder Woman had been around for awhile too, but none had a live action portrayal on the big screen until recently. The effect of those films being critically and financially successful appears to have more of an impact as a result.
Well in regards to our present, I honestly don't think that Superman is doing well when it comes to his popularity. Now, a lot more people may be familiar with superman, but I don't think that it necessarily means that he's more popular than a lot of the heroes that we've been getting on film as of late.
The last time that the character of Superman had a film that was both critically and financially successful was back in the 80's. Ever since then, filmmakers and studios have failed to get him right on both fronts.
If the DCEU Superman had been as successful as Snyder and company had hoped for, I guarantee you that Superman would have been placed at the forefront of everything that is the DCEU. Just look at how prominent Wonder Woman is being featured in JL's marketing as a result of her solo film's success.
Most people agree that Superman was "broken" in the DCEU and needs to be revived in a different way for this film.
This video, although made as a spoof, pretty much gives an accurate portrayal of how I feel a lot of people feel about Henry's Superman after BvS.
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I think he is. Why don't you think so?
If you're referring to the real world, then here's why.
Back when BvS was still being promoted, there were like several videos of people asking who they would prefer over Batman and Superman...and of course most people said Batman. The Dark Knight has been viewed as the more popular one over the man of steel for a few decades, hence why he has been prominently featured in the media in several different ways.
And now that Wonder Woman has been a big hit, she's pretty much been positioned at the forefront of the DCEU as well.
I have yet to see an scenario where a large group of people actually prefer the DCEU version of Superman over any hero period. Anyone that I've seen showing love for Henry's Superman are pretty much in a minority group.