For this informations is good Coinmarketcap website and look at the field ROI, it shows how much early investors earned when they bought it at the beginning.
Ethereum more than a 9000% return.
XRP more than a 5000% return.
Litecoin more than a 1000% return.
Monero more than a 3000% return.
So the best one is of course Ethereum
.
Ethereum more than a 9000% return.
XRP more than a 5000% return.
Litecoin more than a 1000% return.
Monero more than a 3000% return.
So the best one is of course Ethereum
.Very few people were lucky enough to purchase them during the ICO phase, and therefore I don't think that it is worthwhile to debate on this. If you insist, then Bitcoin gave much more returns compared to all of these coins combined. Back in 2010, Bitcoin was available from the New Liberty Standard Exchange for less than $0.001 per coin. The current levels represent a 10 million times return.