Many people say that, Sakura is kage level, but I really don't see how she can beat anybody except Kakashi without sharingan, or Tsunade but this is difficult to say because Tsunade is Senju+Uzumaki which means she have larger chakra pool, and logically "stronger byakugou" if we can say like that. P.S I am not sure about corelation between chakra pool and strenght of byakugou, but this is just assumption.
