I loved the Tabloid-Sized comics that Marvel and DC used to put out when I was a kid. We had a whole bunch -
Secret Origins of Super-Villains, The Fantastic Four, Superman Vs. Shazam, Stories from the Bible, Tarzan, Dick Tracy, Batman's Villains, Marvel Holiday Specials, and more. I have fond memories of lying down on the living room floor and seeing my favorite heroes in "big screen" action.
So, you see the line up here - who ultimately wins? I see Captain Britain, Black Bolt, Rogue and Iron Man winning for Marvel, The Atom, Superman, Batman, Flash and Wonder Woman winning for the JLA with Captain Marvel Vs. The Thing being a draw, so... advantage JLA! I tried to make it close, though, so your opinion may vary.
Let the journey to STF #2000 begin!