Seriously, though, I love Dark Pit as a character because he's, you know, a character. Most evil dopplegangers aren't really characters. Dark Link is just some shadow thing you fight with no foreshadowing. And even the ones who are characters are generally meant to be wrong. Shadow the Hedgehog (who, admittedly, isn't actually a clone of Sonic but is close enough) is usually meant to directly oppose Sonic's worldview, and is thus considered wrong because Sonic's worldview is usually portrayed as correct.
But Dark Pit is right and is portrayed as such. In fact, he's the only character in the game who is almost 100% right (except maybe Magnus). And I find that interesting. Not only is he his own character but his worldview is meant to be the correct one. Like, maybe he could stand to brood a bit less but when he calls the gods selfish schemers he's right.