Just now the Weiss Ratings of Cryptocurrencies have been released, not sure if the pdf I have seen is a paid for report but it looks geniune.
A Excellent, B good, C Fair etc
| Coin | Rating |
|---|---|
| Steem | B- |
| ETH | B |
| NEO | B- |
| EOS | B |
| Cardano | B- |
| Bitcoin | C+ |
| Bitcoin Cash | C- |
| Litecoin | C+ |
| Dash | C+ |
| Bitshares | C+ |
| Ripple | C |
| Stellar | C |