Litecoin is interesting right now. It has activated Segwit and its creator Charlie Lee who has worked at Coinbase for years has quit to concentrate on Litecoin.  I see lightning network and RSK being implemented in the near future. They don't have the political bullshit that bitcoin has right now and are free to innovate. Bitcoin is like a digital gold, its a store of value. Still cheaper to send cross boarders than gold. Litecoin right now has the advantage of a low cost medium of exchange. I would say it makes a great digital currency but I don't think it will ever takeover market cap in the crypto space.