there's no way to get easy profits and quickly. you always have to risk something!
from one side NEO is a very good project with a really wide community and developers spread across multiple countries. NEO also pay you with gas that you can Exchange for other cryptos or NEO itself. Another good feature of NEO is its instant transactions! few seconds and done!!!
Litecoin is one of the first cryptocurrency projects ever built, it also has a great community, is one of the most utilised cryptocurrency, it can be mined (instead of NEO).
Neo has a lower volumes than LTC that has great volumes on exchanges.
well, it is a really hard choice... I'm not able to help you deeply because I can't predict future prices...