Sort:  

Ethereum would be crushed under the kind of transaction volume Steem is handling right now. That's because Ethereum hasn't even begun to transition into Proof-of-Stake. An Ethereum-based social media would have a snowballs chance in hell to gain any traction. The only viable competition to Steem might be based on EOS. There is a lot of development taking place on Steem right now and that's the most relevant metric when assessing future potential.

Coin Marketplace

STEEM 0.16
TRX 0.12
JST 0.026
BTC 57339.41
ETH 2522.28
USDT 1.00
SBD 2.31