I could see some of the Mane 6 sharing close similarities to DC Superhero Girls…
Bumblebee = Fluttershy ^^
Zatanna = Rarity
Wonder Woman = Twilight Sparkle as the leader of the group
Batgirl = Ponk xD
Supergirl = Rainbow Dash
and Green Lantern, erm…. wait, another unicorn? Logically, that should be Applejack…
This is where the comparison falls apart. Wonder Woman isn’t really depicted as a magic in the series, so could be an earth pony, but AJ isn’t the leader of the Mane 6. And that would mean Twilight would be Green Lantern, who feels like a much less-main character…?
Otherwise though, the personalities match up fairly well.
Zatanna = Rarity
Wonder Woman = Twilight Sparkle as the leader of the group
Batgirl = Ponk xD
Supergirl = Rainbow Dash
and Green Lantern, erm…. wait, another unicorn? Logically, that should be Applejack…
Otherwise though, the personalities match up fairly well.