(different user here)
In the history of the characters, yes -- Batman is objectively more popular. But right now? That's a little harder to tell.
Let's look at what's going in recent years:
>cartoons
Batman hasn't had a cartoon since Beware ended in 2014, while Spider-man just finished the longest Marvel cartoon to date in January, and has a new series coming soon.
>Live action TV
Batman has an edge for Gotham, but neither really has representation here
>Video games
Batman has an obvious edge recently with the Arkham series, but there's not much on the horizon. Spidey has something coming later this year. We'll have to see how that goes.
>Comics
Batman has reigned supreme among comic fans for the better part of the past decade, but that ultimately doesn't mean much. The top comic does about 100k units to stores, and when we're talking about global popularity, that means very little. I think we could both agree that Star Wars is more popular than the Walking Dead, despite the comic selling ~10% fewer books..
Also, kudos on that image. 10/10. As a side note, the chart really show DC's over reliance on Batman; I can't blame them -- he sells -- but almost all of their top books are Bat related.
>movies
This is going to be the big kicker here, because we're talking about global popularity, and movies are about as big as it gets when it comes to the global stage. They're a little tough to compare directly, though, because neither has seen a solo release in a few years, and they're in completely different hands now than they were then.
BvS was big, but it wasn't particularly massive compared to other cape blockbusters, and it had Superman as a co-headliner. Civil War was massive, but you certainly can't call it a Spider-man movie.
If Homecoming can outgross BvS, though, I think that would settle it. And honestly, it's got a good shot at it.
>Toys
I'd love to see numbers on this, but I'm not sure where to find them.