When it comes time the New 52, it wasn’t all bad. Batman was surely a highlight of the launch. Though with some good, came issues as well. Superman would be my first thought on heroes that the New 52 damaged. The overall look and feel of Superman was not the same. DC Comics built his legacy over 80 years and I feel the new 52 went away from the persona that we had learned in Superman. The other hero I feel New 52 ruined which may be controversial, was Harley Quinn. I feel they have made her character non consequential where her stories never amount to anything. Removing her from the Joker removed the sympathetic feel you would have as a reader for her situation. Also I feel I’m not the only one who misses her classic Harley Quinn outfit.
I think Rebirth has done an amazing job with Superman, though feel Harley Quinn has not been helped by Rebirth.
Would love to hear everyone’s thoughts on this and heroes you feel were damaged by the New 52.