Everybody has he's or her own. the main issue of cryptocurrenqcies these days can be either stable for a long period of time, or they can stay highly volatile for a long period of time. Nowadays, cryptos are more stable than stocks, but I don't think it will be a very long-lasting trend, because all traders are familiar with cryptos. this comparison can be determined only by a thorough technical analysis or a fundamental one if we talk about long-term intentions.
I don't really know how stock market works, but I think cryptocurrency has much wider reach and is more appealing to the youths of this generation that stock. Cryptocurrency decentralized nature especially bitcoin gives it a different aura, because people will ordinarily want to invest in a sector that has value and for their investment to also increase in value for long-term as long as the volatility is not too much . As for stock i heard the volatility is on the high side and the knowledge behind it is totally different from cryptocurrency.