LTC is older than ETH, but it's still only a fork of bitcoin, nothing else. On the other hand, Ethereum is still under severe development and has active support of big organisations, so it looks like it has a brighter future than litecoin.
Nothing else, I don't think so, fella. I don't think you should compare like this.
Each one has its own fucntions and roles in crypto as welll as in real life. If we did not have Litecoin, we would have not seen the Segwit and Lightning Network on Bitcoin network, or will see it much later.
Ethereum has its own key roles for crowdsale ecosystem, and it plays as a back bone for crowdsale ecosytem.