I own both EOS and ETH, I was lucky I bought both super cheap. EOS has a lot potential groth, if the team deliveres what they promised. Dan Larimer brough Steem and Bitshares, they will bring EOS too, only question is how sucessful it will be.
On the other hand ETH is the real deal, battle tested and great team. 70% of my portfolio is ETH. Don’t plan to start selling before reaching bitcoin market cap.