Bitcoin is a better payment system in few things while not so good in few. E.g., if you want to send large amounts of money to someone than it wouldn't cost more than few dollars to transfer that amount while with the banks it would take high fees and charges. And in the contrary bitcoin is currently not that good to handle large amounts of transactions, although development is being done to fix that.
First of all, that various and each payment system in some countries or one country maybe different. There are a lot of payment system in the world. And I think, in my opinion, we cannot compare them at our will. For example like dollar and btc, those two are completely two different things so you actually cannot compare those two. You have to know that everything as a good side and a bad side, including btc and dollar, and any other payment system, and any other currency in the world. Btc is indeed the revolution of money transfer and the new innovation of money transaction. But there is always a positive side and negative side in this world.