I don't know the reason why you think LTC is the king of altcoin 
). If there is any altcoin which can replace ETH and become the best altcoin, it must be XRP. There is no way that LTC can become the king of altcoin although in next 10 or 15 years. But for now, ETH is still the king, the best altcoin.
). If there is any altcoin which can replace ETH and become the best altcoin, it must be XRP. There is no way that LTC can become the king of altcoin although in next 10 or 15 years. But for now, ETH is still the king, the best altcoin.