Batman punked out Darkseid pretty bad not all too long ago though. Doom's arrogance might play a factor but he usually has his bases covered.
Can't fade Doom's pedigree.
remember the first Secret Wars? (note: yes I know you know, but I'm typing this out for the folks that don't)
The Beyonder (God) got that planet together, everybody was in disarray. Then folks started cliquing up.
DOOM.... saw how everybody was grouped together and distracted,
Conned Klaw into being his lackey
Took Klaw's made-out-of-solid-sound body, dissected it, made some kind of cosmic lenses out of it and hooked it up to a machine
Used said machine to STEAL GALACTUS' POWER.
Used said power to fight The Beyonder head on THOUGH HE KNEW HE WOULD LOSE
While The Beyonder was dissecting Doom a layer of skin at a time like a frog in biology class to see just what the fukk this was that just attacked him, Doom stayed conscious THE WHOLE TIME and waited for The Beyonder to get close...
JUST so he could use the hidden shyt he had as a trump card in his armor's breastplate to STEAL THE BEYONDER'S POWER.
All of this was done on a planet full of superheroes and villains and GOD... and NONE of them had any idea what the fukk happened until Doom came down and told them the war was over!
I'm not even gonna get into the foolishness of stuff like Unthinkable or Doomwar or the fact that (maybe/maybe not) Thanos was once shown to keep Doom under 24 hour watch at all times simply because Doom with 1 second of unwatched Prep-Time would be too dangerous.