hire an employee vs add a pending worker ?

Summary

Are there pros and cons to hiring a new employee as a pending worker first or just directly as a new hire?

Content

Under the NEW PERSON task in HCM, there are two options to hire a new employee: 'Hire an employee' or 'Add a pending worker'. Can anyone shed light on the difference between the two options - pros or cons to using one method over the other?

The information requested appears to be the same. The only difference I anticipate is that using the pending working option would not commit the potential employee to the database should they opt not to take the position.