@furion If you don't mind Ill add a few other reasons why steem is the best digital currency.
Steem/SBD is the only crypto with a real chance of being used for commerce as it's stable and SBD can be pegged to any asset.
Steem is one of the only altcoins that has actual intrinsic value, if the value of the token where to go to zero steem would just be as useful as it is now. Sure the rewards may be zero but people would still distribute those steem with their voting power and steem could very well have a higher price in the future.
Steem has community built in, which means it has a huge advantage over other crypto to bootstrap the currency.
People don't have to spend their own money to get steem, they just have to post and they can receive some steem.
Steem's blockchain is superior to pretty much every other blockchain in terms of technological advancement.
Steem has the potential to be integrated on every website in the world, that puts the technology on par with ethereum.
The development in steem is fastest growing than any other blockchain
Steem is super user friendly, no weird addresses, instant and free transac,etc..
Great addition to @Furion 's points. We are sitting on a gold mine indeed.