In my opinion, they are not really competitors and there is no better here. Both currencies have different use cases.
I believe bitcoin mainly use, for now, is to make the transactions that banks do not allow you to do, or that they charge very expensive fees. Those transactions ares remittances, currency conversions, payments in another currency, etc.
Another great use is as store of value, especially in time of crisis.
Exactly the same boat as you.
Both of these co-exist. They aren't meant to compete to each other (maybe gold?). It is just a matter of what's the most appropriate or convenient entity to use at a certain situation.
I haven't made a large transaction yet with fiat money that cost me a massive fees so that's why I ain't that much sure if there's such situation where Bitcoin is only way to complete the transaction at its most efficiency.