This question is like the alternative way if you do not have any budget to invest in bitcoins then you should spend your money to eth coins because it is the 2nd highest value coin and it really has the potential to grow for the next few more years.
I think what the original poster meant, what many of us want, is what altcoin can we buy dirt cheap (like at .00000000001), buy a ton of that then wait for 1-2 years while that value goes up to $100 so we can get rich.
My suggestion is #ETN. They're down right now but not out.