Source: cosplayisland.com

3. Star Sapphire

Carol Ferris is one of the more underrated DC romantic foils, and she’s also one of my favorites.

She was part owner, executive, and occasional pilot for Ferris Aircraft, where Hal Jordan worked as an experimental test pilot. The two struck up a romance, and a good one, considering that both were exceptionally strong personalities in their own right. But Carol wasn't just chosen by Hal, or by the Ferris Aircraft Board. She was also chosen by an alien race known as the Zamarons to be their queen.

When she refused, they hypnotized her and granted her incredible powers, turning her into the Star Sapphire. As Sapphire, she did battle with Green Lantern multiple times, always losing her memory as soon as she reverted to her civilian identity. Carol eventually beat the alternate personality and stopped being the Sapphire.

But years later, when the colored lantern corps began recruiting in earnest, Carol was re-inducted as Star Sapphire, this time without becoming evil, as the greatest hero of the Violet Lantern Corps.