Proof of Work algorithm is currently the most safest consensus what we have. I do not understand the hype around Proof of Stake - have you thought about the problem of PoS consensus? When you find out a bug in a protocol, you can easily destroy the whole history of the blockchain in few seconds!
Proof-of-Work is what makes a system independent and P2P unless it's hijacked and rigged like Bitcoin is. Bitcoin was the first and it had these design flaws such as increasing blocksize and transparent ledger that caused the scattered miners and devs to merger into a corporation. For example Monero has a dynamic blocksize and stealth ledger, and anonymous devs, which prevents the hijacking of the network.