I personally do not think that ethereal is better than any other cryptocurrency, but just the opposite, that ethereum has a lot of flaws compared to other cryptocurrencies and they are very far behind
Despite having flaws ethereum has proven itself to be a useful coin that can be really used unlike other that's only good in theory but never being implemented for real use anyway.
There's nothing perfect if we are talking about internet but however, it's a matter of how useful the thing is to the community.