Bitcoin is available in more markets and is considered the reserve currency of the crypto-currency world. This is the most stable coin. Litecoin can be considered a fairly stable crypto currency, although it's still very far from Bitcoin. It should be noted that Bitcoin markets are much larger, and even large deals do not have a significant impact on the price. There are also over-the-counter sites where bitcoins trade is conducted. LTC is also traded there, although it does not enjoy such popularity. In addition, Bitcoin is significantly ahead of competitors in terms of market capitalization, so it allows for much larger deals. Therefore, I prefer bitcoin