So simple- XRP.  No digital asset comes anywhere close in terms of fundamentals.  Just spend 5 minutes reading this excellent Q4 XRP report based totally on facts.  The liquidity being developed with XRP is staggering.  9 new exchanges have added XRP as a BASE PAIR in the past 3 months.  This is BTC's only current functional use case!  The current price should be a distraction focus on the fundamentals.  XRP is so undervalued right now!

https://xrpcommunity.blog/q4-2018-xrp-adoption-report-actions-speak-louder-than-words/