Since Star Wars is now a Disney IP, I'm going with Rey.
Feel like that is slightly cheating lol Sure, technically Star Wars and Marvel are owned by Disney, but most wouldn't consider them part of the common Disney lineup and those characters were not made under Disney (though technically, the new Star Wars is lol).
I almost was on the verge of contradicting myself in saying that, but going "Because there's no way we'll see much cross-pollination of characters within these properties, making them distinct". Disney Infinity almost counts, but then I remember Kingdom Hearts 3 and there's no way that game does not get a Star Wars and Marvel world lol It's a very special case though. I can totally imagine Luke or Rey as ones you fight with and like Captain America or Iron Man in the Marvel world fighting alongside Sora, Donald, and Goofy lol
