I don't have Rocka Rolla, Juggulator or Demolition. I will not attempt to rank the Priest albums, excluding those three, going from "Most Awesome" to "Least Awesome", since there they're all good:
Hellbent For Leather
Defenders of the Faith
Sad Wings of Destiny
Sin After Sin
Stained Class
Painkiller
British Steel
Screaming for Vengeance
Ram it Down
Point of Entry
Angel of Retribution
Turbo
That was tough. It should be noted that I like Turbo a lot. Priest... Live! and Unleashed in the East are also pretty great, and the Metalogy is quite possibly the coolest thing of all time.