Every Character Who Lifted Thor's Hammer Mjolnir
13. Wonder Woman
Although the best of them by some considerable degree, JLA/Avengers was not the first crossover between DC and Marvel. The previous attempt was the aptly titled DC versus Marvel, where a similar event happened with Mjolnir as would later happen in JLA/Avengers.
During a fight with Shazam, Thor loses track of Mjolnir and is too distracted by the mightiest mortal to get his hands on it again, thus enabling Wonder Woman to give it a try. Do I even need to say whether or not she's worthy?
But when presented with the chance to use Mjolnir to win her fight with Storm, Wonder Woman displayed her worthiness of the hammer by choosing NOT to use it, as such an unfair advantage would dishonor her opponent and their fight.
While admirable, Wonder Woman rather soundly loses her fight with Storm as a result of this, but it was definitely nice to have full confirmation that the greatest of the Amazons was indeed worthy of Mjolnir.