Between ethereum and koinos, it's much safer to pick eth as investment, if we look the history and reputation of each currencies.

OP imagines koinos is preferable because it's cheap and he thinks it has a lot of potential to grow in value to return huge profit to investors. However, it's not so easy as it sounds: by checking koinos' charts I can see strong volatility in tiny time periods, what is a serious indicator pump and dump schemes are the main factors influencing the currency's price since the beginning.

Furthermore, koinos has already had its ATH last year, which didn't hold for too long and since then, the price has never recovered to a similiar level again.