Apart from Bitcoins which has proven to be consistent in price appreciation, which of these two coins, ETH and LTC you think is most valuable.
Well right now Eth is more valuable but had issues too recently like those transactions congestion. Look at the price of Litecoin right now it suddenly skyrocket and unfortunately I sold mine at $60 so sad. 
If only no emergency happened I will surely have a times five profit right now. I really regret selling my Litecoins. I know that in 2018 Litecoin will surpass the price of Eth and I am sure about that feeling and speculation. At the moment I will give it to Eth as the winner.