Both resembled Kartavirya or Dasaratha's son (Rama) in battle and looked like the god Vishnu himself in prowess or Bhava himself.
कार्तवीर्यसमौ चोभौ तथा दाशरथेः समौ। विष्णुवीर्यसमौ चौभौ तथा भवसमौ युधि॥