What are the eventual (I am also interested about the current, but to a lesser degree) annual inflation rates of each one of these?
For example in Steem case it is a theoretical (since it will probably not exist by then) 0.5%, and in Bitcoin case it is a 0%, since it has a capped quantity of 21M.
What are their transaction fees for a buyer and to a seller?
Are they due to change?
What are their respective transaction speeds?
What are their respective methods of security?
For example, Ether is a proof of stake (or delegated proof of stake? I don't know the difference), what about the others?
Am I correct that all of these enable smart contracts?
Are they different from each other in this aspect?