Bitcoin is like cash - you don't need to go through a bank or credit card network in order to transfer it to another person.
It's better than cash because you can do this over the internet.
And it's also worse than cash because you can't do this without internet.
It's way better than all other monetary instruments because it is programmable money: you can basically treat bitcoins as symbols to represent anything (like titles to property, for example), and have the distributed peer-to-peer blockchain mechanism enforce title transfers in a provable, reliable way without any notaries.
You're mistaken bitcoin with blockchain.
Bitcoin represent only one thing. One bitcoin or 100 million satoshi.
The others are possible implementations of the blockchain and until now there have been no real attempts other than scamcoins to create such a thing.
Don't even dare to bring eth into the discussion.
For me Bitcoin is better than cash because Bitcoin can used online using through buy and sell some altcoins in trading.
You can do the same with cash using an ATM.
That's not a real advantage, mostly because you can't use bitcoin offline.
So in a swap competition cash is still the king.