I like the proof of stake for the efficiency. When we have open abundance of energy creation that is held in the dark right now the proof of work will have a drastic reduction in overhead.
Cool article made me think about how the different systems can be tuned to best fit the application.
Yeah, I am very curious to see how the different existing systems will be altered and innovated in the future. People are only just starting to understand these concepts. Once they become well-known, there should be a crazy spike in blockchain innovation.