User blog comment:DarkClaw3/PE Proposal: Joker (JLA: The Nail)/@comment-27960787-20191222044245/@comment-30634893-20191222122027

But the thing with that is, compared to Olsen, Joker had very little resources to work with. After all, he had his gauntlets and later demonic superpowers, but Olsen had Superman-level abilities on top of having control over all of Lex Luthor's assets, vast Kryptonian technology and dozens of supervillains that he had been manipulating for his scheme to create a new Krypton. He even references how sorely he outclasses the Joker when Batman tries to fight him using the same gauntlets the former had before. So, for what he had to work with, he's pretty darn bad.

Plus, though Olsen slaughtered Superman's parents without a second thought, Joker's murder of Batgirl and Robin sticks out as far worse. He killed them so brutally that it couldn't even be shown on-sceen and, as opposed to Superman's parents, this act has visible ramifications for the rest of the series, in that Batman is deeply traumatized and suffers from recurring nightmares about their deaths. Not to mention the fact that they are children as well.