Looks like 3 blockchains are taking a different path to solve the same issue. Isn't Proof of Stake a way to handle more volume of transactions? I think a ETH proposals was about switch to PoS, Tezos is PoS so i think it could come out with competitive volume of transactions, also Tezos can achieve greater scalability via governance.
RE: Tezos vs EOS vs Aeternity