Ethereum or Hyperledger? IOTA or Hashgraph?

Here some useful comparatives between Ethereum, Hyperledger Fabric and R3 Corda blockchain frameworks from the fantastic article of Philipp Sandner (see here).

Enterprise Ethereum Alliance (EEA) is an organization to make the Ethereum blockchain useful for Business cases (like the Hyperledger frameworks)

Why Enterprise models if you can use a public blockchain like Ethereum?

We want transparency or “permissioned transparency“?

Why use blockchain? IOTA can be useful for Internet Of Things and is not a blockchain technology… is “other” tech…

Then… IOTA (Tangle?), blockchain or Hashgraph? Is this analogy of “cars” true? …