Bonney has shown some pretty decent physicals outside of her hax. Pre-skip Bonney intercepted Zoro before he could cut down Charloss, and post-skip Bonney intercepted Luffy before he could strike the Pacifista. She's also tough enough to get kicked through the laser grid by Kizaru, something that did moderate damage to Luffy.
She hasn't shown much in the way of attack power, but as long as she's fast enough to land a hit and isn't a glass cannon then her hax offsets the need for that. Now Oda has given her a G5 styled move, so if that turns out to be a heavy hitting attack for current Bonney then she's looking like a very solid all-rounder.
I would still side with Doflamingo and Yonko top brass over her, but she's set to beat allegations of being the weakest Supernova, which it seemed most people had pegged her as once upon a time.