BNB is too different from Bitcoin to compare them. BNB is a very centralized coin that probably will not survive for another 5 years. I would not advise to invest in this ionet in long-term.
As long as their exchange continues to be successful, that is their main asset why they will attract people to invest and trust BNB.
XRP did survive, and even the most profitable coin in the last bull run, and I really think BNB is better than XRP as its improvement is very visible to us and it's love by the community. Imagine the hack where a decent amount of money was stolen, it did not make people panic and still invest in BNB, though it was covered with SAFU funds but that is a big weakness on their control, possibly a future hack could happen as they are already proven vulnerable.