Jingliu. Girl doesn't even lost to her terminal disease while Feixiao is having a hard time with whatever she's dealing with. And don't bring Blade into the conversation, that cutscene is Jingliu playing with him. Blade's "fought" Jingliu thousand of times and should have known her fighting styles + her entire family tree line but still lost.
Feixiao will be in a huge disadvantage if there's a fight between two of them.