I prefer EOS because it has good market capital as well as an advanced technology than ETH which has been solved scaling issue as well as transaction speed and cost.
Which one do you prefer right now?
You know what my choice but let me to show some reason.
1. I choose EOS due to it is still cheap so the chance to getting large of profit is big than ethereum

(remember we are investors not collector of coins).
2. ETH get big problem to fix scaling issues due to there are decentralize application dapps runnig on ethereum's blockchain, that's why they still not fix scaling issues until right now.