I choose Bitcoin because that is what I know so far. I don't know stocks but just know the name. But Bitcoin, I know it from a long time ago. I can have an investment plus I can trade it and make a profit.
Holding Bitcoin will be the best for me because I don't have doing other things. I have a chance to make a profit in the long term like what I alread did. I don't know how to trade stock because I never learn it before.
Besides that, if I can just buy Bitcoin and accumulating, that will give me a chance to make a big profit in the future.
If that's enough for you - that's awesome.
The main thing is to find what suits you best, and keep moving forward in that regard

Stocks are the same alternative that BTC is an alternative to stocks.
There's nothing bad in aiming for both though, especially with platforms that have both stocks and crypto trade options. For example example trading stocks here gets you some bonus.

Just as an incentive for you to explore the option, I'll say that's cool😌