This release should hide the '- Please choose -' entry from being among the options.
One note for those upgrading from 1.x to this 3.x module. Since the options have changed, you should make sure to visit the update page to ensure the module gets a chance to convert old options to the new ones. Prior to doing this, the module will be effectively disabled as soon as you place the new files in your modules directory.
This is primarily a stability fix on the 5.x-2.0 release of Pathauto though it does include some new "features" they were considered to be quite important in order to be added.
BUG: Fixed Default Value / Default Image fieldsets
BUG: Fixed Default Value Display
BUG: Improved Tokens table appearance on field settings form
BUG: Added node param to hook_field_formatter
FEATURE: Added Max Number of Images setting for multiple values.