How are you a full member and still don't know that you not supposed to compare price of individual coins, but market caps?
That's still doesn't give you a full picture, but a much better metrics.
So it seemed for me Bytcoin is much less popular and much less developped.
You may google "bytecoin premine" and find how 80% of Bytecoins was mined secretly by developers themselves.
This fact alone give bytecoin a big red "scam" label by majority of crypto community. And nobody want to have a deal with it.
Sure, it pumps sometimes and have a big marketcap, but that's because majority of coins concentrated in few hands.
Recently Bytecoin has another nail in the coffin when it did not fix vulnerability in cryptonote coins and about 700 mln of bytecoins were created by hackers (or possibly insiders) out of thins air and solded on exchanges.
To be clear, karbo didn't suffer from same bug (was fixed in time) and has a clear launch history.