To be honest. With Rootstock making such steep progress recently I wonder what benefits Ethereum will offer in the future. There seems to be a lot of support recently for rootstock and it is not an altcoin but builds directly on Bitcoin: https://twitter.com/slushcz/status/795744821717692416

I actually see a bit of an advantage for Rootstock as Bitcoin has more users and Bitcoin does not need to hard-fork if Rootstock is being attacked.