The right method depends on your situation:
1. If you know the exact address of the location, Google Maps is the fastest.
2. If you want to base Geo Fencing on where employees have actually been punching from, use the export punch data method.
3. If the address is unclear or the entry point differs from the map, ask an employee to punch from the location.
4. Requested Coordinates works only after Geo Fencing is already active and employees start flagging new locations they need.
Many organizations use a combination of methods depending on the location type.