Tether may be the most stable of the currencies, always maintaining their dollar parity value.
Is it really the most powerful? I think you have to look into Tether a bit more to understand that you may not want to put all your eggs into that basket. Also, why would you want to hold something that's only going to devalue over time? It's meant to be used as a transition currency, not really a hold. If you REALLY want to hold Tether, then just buy some USD.
+1 OP
The decentralization of Bitcoin and non-licensed exchanges like Bitfinex, Binance is far better. The community needs these, but doesn't need backing on illusion. Decentralized, non-licensed, cryptocapitalists, part of the game. USDT rather than USD, easy, convertibility, audit is just a hover in the air. Let the song last forever.