Hi Greek Bro, for me the BTC history shows that Proof-of-Work is the best algorithm. BTC is in 0.21 codebase, LTC with the similar to BTC codebase is in 0.18 now (latest release), and Mooncoin still in 0.17. Regular updating of codebase with fixing known issues and setting checkpoints is important.
Proof-of-stake algo is also not ideal and is vulnerable to another sort of attacks.
The most important thing is to raise network hashrate which will happen automatically after the market cap goes up.
It is not about monetary interests, it is about security of network first of all.