Discussion: Which altcoin is the furthest in technology?

Nowadays there are many altcoins with all different technologies. That’s why I propose to have a discussion about which projects have the best technologies. This will also improve the quality of posts in this sub. That is why I propose to start a discussion based on the questions below:

1) Which altcoin had the state of the art technology 5 years ago and why?
2) Which altcoin has the best technology today and why?
3) Which altcoin is going to have the best technology in 5 years and why?

Be creative and let the discussion begin! 🙂