I am glad you brought this up. Steem is the most powerful blockchain in the world for the last year. Currently at nearly 2 million transactions per day. EOS is built on same tech dpos but with different purpose. Personally, ETH is my biggest most successful bet since 2016 when the prices were low but EOS will rival it then same way Apple and Mircosoft were direct competitors. The problem with Ethereum is its not scaling fast enough of the moment Vatilik announces the hard fork date for Casper ETH will moon.
EOS will scale to 100,000's of tps right away and have special developer tools to make user friendly. Sure ETH has the network effects (first mover) but I expect EOS to gain market share against ETH this year. Already dozens of legit dapps are building on EOS. I also expect Bitcoin market share to keep eroding into more superior alt coins. Lightening Network is over-hyped and over-rated product.
EOS is way more powerful than STEEM as it can execute transactions in parallel. STEEM can execute up to 180.000 transactions per second, which is huge, but EOS can do multiples of that running paralel executions.