Your choice though on which one would suit out your interest and basing up with your analysis among the three.Im not aware with that ATOM but for EOS and BNB for sure lots are aware of these
coin which i would say that this is more a worth choice.If you can split up your money or diversify among the 2 options then it would be better to divide up the risk.
Just think up fix that there's always a certain risk of losing money even if you do hold up for long term since there were no guarantees on making profits even you tied up with most popular or established coins.