Nobody can replace Bitcoins at this time. If you want to replace something that already exists. He should have been better and more perfect than before.
Bitcoin is now still a crypto king. BNB also now suffered a very bad decline and caused harm to investors. BNB also climbed when their project was used to buy IEO. BNB Price now only $16
Bitcoin is the always king of crypto market so it will maintain a top region and Ethereum is the next position because of huge marketcap. But why you compared prices because demand and circulation is prove the potential of cryptocurrency. I hope BNB will going to moon on further days and it trying to reach 4th position soon.