The most interesting Suprenovas in my eyes have always been Drake, Law, Bonney and Urouge. We've seen Drake's story played out for the most part. I always had him dethroning Kaidou while Luffy took out big mom but it turns out Kaidou was meant for Luffy. Law and Bonney seem like perfect firstmates for Luffy. One is reminiscent of Rayleigh and Bonney reminds me of Benn Beckman. Since they won't serve as Luffy's right hands I have big hopes for them in the storyline. Bonney is emotional, intelligent, rash and has the most mystery surrounding her out of the Supernova. But most of all she's not a talker but a doer. She prevented Zoro from slicing the tenryubito avoiding incident and not only showed impressive speed and intelligence feats but made Zoro look like a dumb kid in one split second. She didn't bang her fist and yell when she decided to confront Blackbeard she just was like"Pack the bags boys we're giong to the new world. Fought a basically Yonkou crew before timeskip with her own crew and was crushingly defeated.
Without that main character plot armour thats to be expected but still had the wherewithal to kick Blackbeard in his stupid fat face(Another one of my favorite pirates). Then we see her take interest in Luffy after Dressrosa, always a good sign for characters. Then finally we see she has the ability to sneak into the holyland and be concerned about Kuma. While she may not have Luffy's accomplishments she's basically running ahead and trying everything we would expect Luffy to do. She's a good captain despite making huge mistakes that costed her, her crew. She plays it close and Dangerous but still smart. She might be a little too ambitious or overwhelmed but when you have that kind of play style your only options are too win big or eventually bust.
Then you realize she's the only Supernova to fight a(we'll call him a yonkou) escape Akainu and make it to the holyland. She has valuable experience that can make or break a sucessful mission. I hope she teams up with Luffy in the future. If I had to choose a crew to serve on just going off the Shabondy arc I would have boarded her ship. I think she's destined for great things despite the sexist nature of this manga. I just don't see her losing out to any of the supernova. I would have talked her out of confronting Blackbeard head on though.
Plus I had her as the daughter of some combination of one of the three. Big Mom, Roger or whitebeard. At first I had her as Whitebeards daughter which the irony alone would put her in my top 5 characters. Then I thought she might be Big Mom's daughter which I am hoping she still is but I'm sure the father would be another big name like Roger or Whitebeard. Any of these would explain why she cried at Ace's/Whitebeards death and all of the sudden started to like Luffy. Plus I ship her with Urouge.
Urouge needs no explanation. - Muah