I personally love Wang Yi. Especially when she wears her dlc officer outfit.
Her jump mouso is just awesone.its an assassination move which is perfectly used to single out an officer to kill. Once you master her jump mouso, you can target any officer amongst a huge crowd of soldiers.
With the right four star weapon, you can kill any officer on chaos with her jump mouso.including lubu. And mao chao doesn't have a chance