Except for Bitcoin, I find POS coins to be more valuable. Even Ethereum is switching to POS.
POS is 'cleaner' than PoW, and staking creates scarcity that could lead to a price pump.
BUT
you might have noticed that Ethereum is not hurry up to switch to this PoS! They haven't even published a complete spec for their ETH 2.0. They speak too much but what are they doing? Maybe they are smarter than you think? They haven't done this switch despite the fact that dozen of "ethereum-killers" and "first-movers" have already finished a long awaited transfer.