Ethereum is an open ponzi scheme ran by wealthy investors and there's the Goldmansach's connection.
My vote is for Ethereum... it really feels like it could become the Oil of cryptos (being bitcoin the Gold). Stellar looks like it could have its function as btc/fiat exchange layer with 100% legal compliance. After all, Stripe is a payments juggernaut.
Disclaimer: I'm happy owner of both, ether and stellars..
