There's no solid evidence that PoS is the way to go. PoS has been out for ages and NxT & Peercoin never dethrone LTC.
You are always stating things, but why don't you do some research. There are very good whitepapers out there.
For example Peercoins POS had major flaws with the fact that it is free to forge on EVERY fork possible. So whenever a fork is happening, just run multiple instances of the client and try to forge blocks on every chain. This is not a behaviour you want in your algorythm.
NXT tried/tries to fix that, but it isn't implemented yes: Transparent forging.
Bitshares now released a whitepaper on exactaly this topic:
http://107.170.30.182/security/delegated-proof-of-stake.php They call it delegated Proof of stake. But it is essentially transparent forging. And I am curious who will be first to implement it.
So there is good proof our there that POS is secure and doesn't have any big flaws. (if implemented correctly)
What you are most likely reffering to is, what is more successful with users... But users give a shit, miners do, but they will die out soon enough I bet.
