LTC has nothing on its own, while Ethereum started the dApps into cryptocurrency world. So I'll go with ethereum.
Ethereum, he is clearly a good potential, but now his condition is not so good that many are disappointed. even when conditions are not good many believe this condition will end soon and return to good and beautiful conditions. Litcoin is a good coin but for now it hasn't reached the top, maybe in the future there will be a lot of interest in having Litcoin.