Idk how you can say its objectively better. PoS is literally subjective consensus. Not sure if you're being ironic, but here's a short lesson if not:

In PoS validators can build two different ledgers at zero cost, and the only way to know which ledger is the real ledger is to connect to the network and see which ledger all your peers consider to be valid: i.e. subjective decision

In #bitcoin, there is an objective way to determine which ledger is correct: choose the ledger with the most work. No matter what your peers say, or what the devs say, you know the 'best' ledger is the 'heaviest' ledger. No subjectivity allowed.