Which is the best option for remittance Bank or Airport?

Out of these which one is the best option that you have used or thought and done while you ave shifted or travel...

The best option always is the bank because it is safe and we do not have to pay the higher charges on the currency exchange as it's pre-planned and not on the spot.
At the airport, it is actually expensive to remit our money as they have to logically pay the extra cost for setting up their stall at the airport and cover all the other expenses too.

I would rather prefer bank for my money remittance.