BTC is highly recommend if you want to invest in crypto wold because as we all know that BTC is the king and no one can fall it down and also btc is good for long term investment it will make you rich if the price will go Up. But Op remember this if you have 2BNB right now then you can also hold it because bnb is also a good coin for investment. But the last decision are yours if you want o trade you le bnb to btc or just hold your bnb.
After all, Bitcoin is the best choice for investment, especially for newbies who are just getting to know the crypto world. Which newbies are usually not
fully familiar with the crypto world and also newbies do not have good analytical skills. So in order not to choose the wrong crypto for investment,
newbies are advised to first choose Bitcoin for investment. Because as you explained Bitcoin always dominates the market and is very good
for long-term investments. So investing in Bitcoin is likely to make a profit much easier than investing in altcoins. Most importantly, after buying Bitcoin,
we must be able to hold long-term until the price rises to new ATH, it can definitely generate big profits from Bitcoin.
Regarding BNB, as you said, it is also a good choice for investment because it includes top coins with an extraordinary development team.
So my suggestion maybe the percentage of investment in Bitcoin should be bigger, because even though BNB is a good project, but of course
it doesn't perform as well as Bitcoin in my opinion.