I think Doge is still promising coin as I see on some gambling sites accept and support it to use in betting. Ethereum is the number one altcoin and I don't doubt it. Newly created tokens are ERC20 supported with the help of its platform same with Waves.
doge had been around for more than 5 years already and yet its price still seem like what it was since time. i can't remember if it even touches a cent. but its network is fast though, i'm sure someone can hide their money behind it.
one that someone should have by now is NEO. this is just one of my recommendation and maybe just monetha too.