Honestly, between MacKay, Hickman and Ewing, I'm not really sure who has the hottest pen in marvel right now but I'm loving all three. Immortal Hulk...
I'm not terribly interested in what sells better, just what is the better story and both the plot and character progression are much better in Batman...
Jerry Siegel/Joe Shuster, Bill Finger/Bob Kane/Gardner Fox/Sheldon Moldoff/Jerry Robinson, William Moulton Marston under the pen name Charles Moulton/Harry Peter. Creators of the most enduring iconic archetypes of the comic book superhero genre. The creators early Golden Age versions should be preserved. The early Golden Age mythology by the creators are as close to the proper, correct authentic versions as there is.