But if you compare PoS coins versus non-bitcoin PoW coins over the last year, I'd expect PoS coins to come up on top.
If you are speaking about the past years this simply isn't factual. PoS coins have almost all proven to be ICO scams or pump and dump opportunities.
Well, I agree that some PoS algorithms are most likely much worse than PoW. I'm more interested in the potential of PoS, how secure it could be if best practices are followed. PoS is still growing up, Bitcoin is much further ahead in terms of protocol security.
I agree and would like a TaPoS layer or sidechain added to bitcoin as an option for added security.