BTC and LTC might not be feature rich but at least they have never been hacked lol 
Erm you might want to check what happened in 2010.
Yes all of us want to know what happen with all cryptocurrency in the future.
First thing i will say, nothing is sure and all know that, so its more interesting to see what happen in the future.
Therefore, you must have reason to prove your choice is right and the worst situation for Ethereum happen is impossible.