Currently, my investments are spread out among Ripple, DeepOnion, Stellar, Litecoin and Ethereum. I think DeepOnion has the most potential among these coins since I believe it is highly undervalued at the moment.
I believe what you just mention but the most coin i think is eth, eth. Eth is next to bitcoin many years later on eth may compete with bitcoin. Eth is safety and very effecient to use and alsl their transactilns unlike the bitcoin but in terms of value eth may not compete with bitcoin but eth will help you out in that range of years you want to hold.