Bitcoin yes, ETH no.
If you look critically at ETH, you cant help but wonder what the big deal is.
1. Its a pre-mine coin - Remember when that was a bad thing? When did that become acceptable to pre-mine a coin, that is what we used to call a scam coin. (12 million ETH were set aside for the developers, and 60 million ETH were premined for ICO participants to buy. There is 109mil ETH in circulation, so 72 million at launch is insane.)
2. Immutability / Decentralization - It is not right for one person to have so much control that they can decide to 'fix' a problem like a DAO hack with a rollback. If Vitalik says something, or something happens to him, it affects ETH and its price. You cannot argue that. Even a dumb tweet by him can affect the price.
3. Smart contracts - Bitcoin is doing more smart contracts than Ethereum with lightning network. If you look at the amount of smart contracts on Ethereum and how they are being used, its a joke. The only real use cases that have much traction seem to be gambling websites and ponzi schemes.
4. ICOs - In my opinion this is the killer app of Ethereum, but now, there are a host of other crypto currencies that can do these just as well, for cheaper.
5. Unlimited supply - Since there is no cap on the amount, it will never be scarce and will always inflate. Good luck if you ever try to change that.