Here's a cool Bridge trick, use your number keys to rate your pictures quickly and easily.
Select the image.
Press CTRL + keys 0-5 for stars
Press CTRL + keys 6-9 for labels
You can even eliminate the need for the Control key if you want.
Choose Edit > Preferences > Labels
Deselect the Require the Control Key to Apply Labels and Ratings option.
No modifier key is needed now. Just the numbers. Nice.