The main reason $BTC and $ETH are 1 & 2 in market-cap is quite simple, they have far more network adoption than any other projects by a wide margin. However, judging by protocol developments, on-chain usage, & community growth, I see another project ascending to that status $LINK if you look at the charts Chainlink related smart contracts have out run every other crypto on the market at the moment and with their recent partnerships with Google
and Swift that number will more than quadruple by this time next year.
Respectively it should be worth a half of what $ETH is valued at and I see $ETH going to at least $1,200 a coin by August maybe more. That is when the real fun begins with crypto and the FOMO should be kicking in as $BTC should be $30K by that point.
This has the potential to be the $XRP or $LTC of 2020 and at these prices its a major major bargain.