Oh, David Mack had some great bits about the origins of Kingpin in Parts of a Hole, but I don't know whether they were retconny or not. They didn't seem to entirely match up with what Wikipedia had.
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That's not entirely a retcon, except for Catwoman's story.
Which they've since retconned.
I'm not too familiar with the original origins of Spider-Woman, but Bendis's Spider-Woman: Origin story was really good and enjoyable, and I liked it even though according to Wikipedia various things were changed.
It's okay. Lacking the SERIOUSLY MADE OF AWESOME CRACKTASTICNESS of the original, though. Oh, Mark Gruenwald, why did you have to die young?
I actually liked John Byrne's retcon of Superman's origin post-Crisis in Man of Steel, what with the still-living Kents and more reasonable powers and evil billionaire Lex Luthor and and no other surviving Kryptonians like Krypto the super-dog or Streaky the super-cat or Puddles the super-hamster and so forth. Of course, virtually every good change he made has since been undone by various other DC writers.
I agree with Matt. Evil billionaire Lex Luthor is the best retcon ever.
Lacking the SERIOUSLY MADE OF AWESOME CRACKTASTICNESS of the original, though.
It seems like they wanted to use the High Evolutionary for EVERYTHING, huh.
Evil billionaire Lex Luthor is the best retcon ever.
He wasn't always like that?
Pre-crisis LL was a lame stereotypical evil mad scientist.
Who became evil because he blamed Superboy for making him loose his hair.
Have they done any print retconning to align themselves with Smallville, or has it been kept pretty AU separate?
I'm not sure... I'm 3 years out of reading my last DC comic that Neil Gaiman didn't write, and never paid much attention to Smallville in the first place. The comics were definitely influenced by the big reveal/wedding in Lois & Clark back in the 90s.