Bitcoin will be always king as its main coin. ,
Second ETh as all the other airdrops are linked with ERC20 wallet.
Third - EOS - it supports new companies also. also it linked to some Airdrops its a chinese coin.
I also wanted to put forward such a list. But I think that most believe that the top 2 is bitcoin and Ethereum. On third place still is unknown who will. You're right, the EOS could take this place, because his ambitions speak of a good future, but whether they can do all this is a matter of time.