Originally Posted by
Green Goblin of Sector 2814
A few problems with your argument. Geoff Johns never really had a consistent run on Superman titles. Like you said, he was on and off. He did, however, have a long and consistent run on Green Lantern, during which time Green Lantern became a best-selling title and even outsold Batman. So, yeah, proof that, with the right investment, other titles are able to rise to prominence.
The only time that Grant Morrison wrote Superman before 2011 was a miniseries, even if it was an instant classic. And his Action Comics run actually did sell very well, but was, unfortunately, part of the much-maligned New 52, during which time much of DC was subject to editorial mismanagement.
And having a few all-star writers on the title is not the same as meaningful investment when 1) at least a few of those stories aren't really considered the best and 2) DC still doesn't do much to hype those storylines. Looking at the last 10-20 years at DC, can you really say that they've hyped up what's going on in Wonder Woman's book or Superman's book or Flash's book nearly as much as they have for Batman? I mean, pretty much every arc of Snyder's Batman run was treated as its own event. The only thing that's come close was when Geoff Johns was on GL...and GL was a top 10 title every month.
But most importantly, your post boils down to: "but they also do a lot of stuff with Superman." Yes, we know they do. Superman is literally the only other character in DC's canon that has gotten a comparable amount of attention as Batman over the years, even if not as much. The point is that DC has much more to offer than just Batman and (sometimes) Superman and should do more to showcase that...
...But they can't because they're too busy giving us 80th-anniversary issues for not just Batman, but Robin, the Joker, and Catwoman too. And I'm not saying those characters shouldn't get anniversary issues, but I don't remember Lex Luthor's 80th anniversary, which was also this year, even getting a mention. Or Dr. Fate's. I mean, you know when Dr. Strange turns 50 three years from now, Marvel's gonna have a whole month of variant covers to celebrate and a special anniversary issue planned.
And no, it's nobody's "fault" that Batman's stuff is popular. But it's just smart business to invest in more than one property's popularity and to ensure a diverse slate of titles because a) there are some people who don't like Batman and b) there's always the possibility that the public will get fatigued with Batman. I'm a HUUUUUGE Batman fan, but even I can get fatigued with all the focus on him sometimes. And, honestly, part of me can't help but wonder if that was part of the appeal of the MCU in that it offered "new" heroes that most people hadn't heard of yet.