They are all scam projects and i don't need to say anything about that, these crappy tokens with very low volume since they have finished their icos. They are a very bad choice and they have nothing to be proven to the investors.
Litecoin is one hundred per cent as a lite version of bitcoin and it's only different on the scalability and it has the fastest block than bitcoin. All of them offered nothing (product) to the buyers.
OPUS have a working beta on the testnet soon mainnet
HERO have a working beta on the testnet soon mainnet and a working platform and regulation from austrian goverments.
PLAYKEY have a working platform and working on the release of the decentralized gaming platform for gamers and for miners.
EBTC maybe have no use case at the moment.