Are you talking about per coin valuation or market capitalization here? If you're talking per coin then it isn't really fair since Ethereum has almost double the amount of LTC that is currently in circulation. But i still think that right now, ETH is probably deservedly more valuable.

Even after the pump LTC is only in fifth place in market cap terms while Ethereum has solidified itself in the 2nd place.

I don't really like Ethereum that much, but i guess the market have voted with their dollars when ETH overtook LTC as the consensus number two guy in crypto. So yeah, ETH is more valuable at least for now. We'll see how big LTC's pump gets though.