The best is altcoin I have traded bitcoin with dogcoin because the market has not turned the price unchanged all the time, the higher returns you will get because I have tried investing in ICO on RISE coin and I lost a lot of money because I did not know that in the bigger stage ICO you have their stock. I also invested in valuable altcoins reduced to 1 satoshi. Because I was cheated so I did not advise people to invest money in these coins.