Lots of advantages if we have bitcoin but 4 things that make me like and feel benefited with bitcoin are anonymous, high security, low transaction costs, and incredible transaction speed.
I think security and anonymity are great advantages that bitcoin has over the pothers or it's fiat counterparts but transaction fee cost can be subjective depending on the transaction you are making and the fees you are required to pay because i cannot pay for a cup of coffee with bitcoin and then get deducted for almost the price of the cup of coffee. The transaction speed is also questionable as there are many more unconfirmed transactions on the network and compared to some altcoins bitcoin isn't offering much either in that area.
It also does not provide complete anonymity of transactions, some other cryptocurrencies are doing it better