I think if storing for a long period of time, it is good to store it in BTC, because bitcoin is good in a long term investment, and also bitcoin is good to store money with because of its trading volume, ranking the first and most volume coin in the market.
Same as you I really think that bitcoin is the best coin which has largest potential and it has high capacity to overcome your lose, it has higher trading value and an investment strategies, I think till now no coin has been that capable to give investors that much profit only for holding as bitcoin gives, recently bitcoin was best to buy for low price but now time to show patience for huge reward till end of 2019, bitcoin is the best.,