LTC is stuck to lite version of Bitcoin motto. Ethereum is being actively refined and updated and Ethereum is the prime fuel for ICOs.
Both coins are great and still profitable. But I believe Ethereum would be more beneficial than Litecoin in the long run.
I recall the forecasts for Ethereum for this year, then the founder of Standpoint Research, Ronnie Moas, think that until the end of 2017, the airwaves will grow to $ 400. This statement was made on the general background of predicting the global growth of Crypto-currency, without taking into account events with segregations bitcoin or boom ICO etherium.