Interesting... "Most decentralised?" is a tough question. Except for a few coins, it is all decentralised, you can't qualify further except on "how can it be disrupted" as in 51% of mining power in a proof of work chain.
In that view, I like the delegated proof of stake a lot which is what Dan Larringer brought us with bitshares and Steem and is now copied by Cardano and the likes.
In your thinking, i am investing also in what i call sexy coins like substratum rebuilding the internet and Neblio shooting sattelites in the air to build our own decentralised uncensored internet.