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I believe steem has a lot of growth to do as well as litecoin,

For now due to the upgrades that litecoins is going through is very safe to say that its going to go through a surge soon

It maybe a temporary surge but it will most likely take the price above the $100 mark,

As far as your question goes
Its just a matter of how you do your trading,
for long term investment Ill say you can profit more through steem thats assuming that no other applications that compete with it are made.

As far as litecoin goes, most likely will double before the end of the year and once price exceeds the $100 mark it will attract and new wave of investors.

its harder to develop coins to compete with litecoin
than it is to compete with steemit.

keep in mind also Litecoin is the exact same technology as bitcoin except for a higher total amount of coins (84 million) instead of (21 million) that bitcoin has.
This means litecoin will most likely be used as a checking account while bitcoin is used as a savings account, if this occurs the price of litecoin should be about 1000 per coin assuming everything else stays as it is.