I am surprised that no one mentioned Byteball.
With its DAG and witness system, it's innovating in all fronts, without choosing the easy path of being a copy of Bitcoin, or trying to mimic what Bitcoin already does.
It's also integrating with WCG (World Community Grid), to support a series of scientific researches in different fields of knowledge.
The only time when I get surprised while going through such posts is when people do not mention about bitcoin. They dont suggest it as the best investment while it is. Nobody can deny this fact. It is good to hear that your coin is not trying to be a copy of bitcoin but you also know that bitcoin is the best. It wont be beaten by any other coin and there are many good investments for sure.