I think so far Eth,Waves really deserve to be considered as altcoin which has good chance for future investment.
Because currently there are several ICOs that use flatfrom from both these coins so that it can add popularity and population of its users.
I agree. I would not talk about Bitcoin because it is already the leading coin now, and judging from its current state, it would be the favorite to be the "coin of the future" since it has better value, potential and marketability amongst all coins in the market. As an alternative, I agree with the above-stated reply that Eth would be that coin of the future for the sake of this thread. It has a similar path taken by Bitcoin during its humble beginnings and more people are also believing it as the second best coin in the market.