Why this random selection?

Because that’s how I intended it to be. To be very random.

Well, if I remember correctly, Starfire recieved elite training from the Warlords of Okaara, while Mera was trained from a young age and Nubia, well... is a centuries-old Amazon. So with that in mind, she is my pick. Ultimately, it depends on the writer.

Yeah. And that’s exactly what @Leader Vladimir always says whenever it comes to questions such as these or anything else. Lol 😂

That’s the most realistic answer, anyway.