How are you gonna compare Secret Wars to Martian Manhunter?
Of course Secret Wars is demolish that title.
That's like comparing Justice League to Iron Man...Justice League for the most part will have higher sales.
And I don't know why DC can do in their marketing anyways....maybe stop making so many Batman animated movies?? Focus on other characters? I doubt that would work. Most people just don't want anything to do with non-Batman DC characters regardless of what you do.