Well, since Robert Smith, a relatively weak and puny goth, could beat the crap out of Mecha-Streisand, surely the ultimate goth demon thing would be even more successful.
I believe I am also supposed to say “Batman, if he was peppered” without providing any justification.
Godzilla causes property damage. Cthulhu eats continents. And any attempt to prepare for a meeting with Cthulhu would result in a downward spiral into madness. OTOH, Batman could easily get one of his super-powered buddies to screw with the stars, preventing Cthuhlu from awakening.