Well, here’s how we got to where we are:
Leave it to Dr. Doom to use his magical science (Or is it sciencey magic?) to defeat Flash. But Dark Phoenix, after easily dispatching The Atom, who frankly shouldn’t have made it this far, was far too powerful for the metal monarch to bring down. You know what they say about a woman scorned and all.
Although the Joker’s extremely sadistic violence got him past previous foes, post-Infinite Crisis Wonder Woman is not going to put up with any funny business.
Wolverine and Deadpool was a fight that would put Quentin Tarantino and Frank Miller to shame. But ultimately you have a mutant using weapons to fight a mutant who is a weapon. Wolverine is the best at what he does.
Wonder Woman’s made the mistake of using her lasso of truth on Logan. She was shocked by what his violent past and what he had to say about her costume. This gave Wolvie the opportunity he needed for some surgically placed incisions.
Sinestro never figured out that Storm is only afraid of small spaces. Another extremely cool villain falls to a lovely X-Woman.
Lex Luthor bought Oscorp. Sold it off in pieces and used the profits to buy a Super Sentinel. This distracted Storm long enough to use a device on her that convinced her she was trapped in an ever-shrinking room. That Luthor is resourceful.
Batman has “killed” Darkseid before and “survived” the Omega beams to boot. In a rematch, Batman would find a way to duck and save himself the trouble of traveling through human history to come back from the dead.