BTC has already centralized control to China.
Ethereum Dev has Centralize ETH , with the hard fork, and saying he have nothing to do with the classic fork.
Centralization is the only possible outcome to a PoW coin, due to the ASICS Arms Race it fosters.
A Proof of Stake coin can stay decentralized , no matter what others choose.
Example:
With Proof of Stake , if the Dev tried some nonsense like a hard fork to move funds between accounts,
all you and a few others would have to do , is refuse to upgrade, and hard code 1 checkpoint into your wallet and you split the network forever.
Unlike PoW coins, with PoS coins you are the one keeping the network running , keep just 3 active nodes that stake daily and your network will never die.
Plus with Proof of Stake, you have a reason to keep the majority of your coins in your own personal wallet, in PoW coins most people just leave them on the exchanges.
One Major thing , all Devs need to realized is the second they intervene with coin ownership by programming code, they become no different than the banking systems, and all trust in that coin shall be lost forever, as they just Centralized Control.