Although BNB is a good coin too as Binance is using it and they are doing things to make BNB have a real use case in different aspect, still I doubt that BNB will be the next Bitcoin. Still Bitcoin will be the king in few years, but let us see how well BNB will do in a market. But, don't forget that market is purely manipulative, so be careful in it.
Between bitcoin and BNB in my opinion both have advantages and disadvantages of each. Starting from the features, usability, transaction costs, network speed and market demand. But now bitcoin has begun to be adopted as one of the payment systems whose networks have spread outside to various countries. The community is also very strong and in my opinion this is another advantage of bitcoin.
Are prices and trading volumes worth comparing ?
Still Bitcoin will be the king in few years,
I think it will remain valid for a long time.