i believe after bitcoins market dominance drops below 33% it will have less sway on the direction of the market as other more utilitarian blockchains begin taking shape.
we still have a while to go but maybe steem will make it to the top 5 at least!
Maybe eh ;)
steem's the blockchain tech I've used the most actively (directly at least)
One of the reasons for this is that they make it as easy to participate as possible. There are no barriers of entry and everyone is welcome to participate.